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MODULE 8 WORKBOOKPerimeter, Area and Volume
Commissioned by GCSEPod.This resource is strictly for the use of subscribing schools for as long as they remain subscribers This resource is strictly for the use of subscribing schools for as long as they remain subscribers of GCSEPod. It may not be copied, sold, or transferred to a third party or used by the school after subscription ceases. Until such time it may be freely used within the subscribing school. All opinions and contributions are those of the authors. The contents of this resource are not connected with, or endorsed by, any other company, organisation or institution. GCSEPod will endeavour to trace and contact copyright owners. If there are any inadvertent omissions or errors in the acknowledgements or usage, this is unintended and GCSEPod will remedy these on written notification.
7 May 2019
Module 8
Perimeter, area and volume
PODS
The following pods will be needed for the four lessons in Module 8:
1. Triangles | MATHS-33-001
2. Quadrilaterals | MATHS-33-002
3. Circles | MATHS-33-004
4. Composite Shapes | MATHS-33-003
5. Prisms | MATHS-33-006
6. Other 3D Shapes | MATHS-33-008
7. Parts of Circles | MATHS-33-005
Lesson 1
Basic Area and Perimeter
PODS
1. Triangles | MATHS-33-001
2. Quadrilaterals | MATHS-33-002
3. Circles | MATHS-33-004
1
Quiz
Watch the pod and answer the following questions.
1. Which of the following can be a unit of area?
a) cm
b) m
c) m2
d) cm3
………………………………………………………………………………………………………………………………………………………………..
2. What is the area of a rectangle measuring 7cm by 4 cm?
a) 28cm
b) 28cm2
c) 11cm2
d) 22cm
………………………………………………………………………………………………………………………………………………………………..
3. What is the perimeter of a rectangle measuring 8cm by 13cm?
a) 42m
b) 104cm2
c) 104cm
d) 42cm
………………………………………………………………………………………………………………………………………………………………..
4. What is the area of this shape?
a) 84cm2
b) 44cm2
c) 42cm2
d) 19cm2
………………………………………………………………………………………………………………………………………………………………..
2
5. Find the area of the shape below, rounding your answer to 2 decimal places.
a) 201.06cm2
b) 50.265cm2
c) 50.27cm2
d) 64cm2
………………………………………………………………………………………………………………………………………………………………..
6. Find the circumference of this circle, rounding your answer to 1 d.p.
a) 113.1cm
b) 28.3cm
c) 9.4cm
d) 18.8cm
………………………………………………………………………………………………………………………………………………………………..
7. Find the circumference of a circle with radius 4 cm, rounding your answer to 1 d.p.
a) 25.1cm
b) 201.1cm
c) 12.6cm
d) 50.3cm
………………………………………………………………………………………………………………………………………………………………..
3
8. The area of a triangle is 54 cm2. The height of the triangle is 9cm. What is the length ofthe base?
a) 6cm
b) 12cm
c) 3cm
d) 18cm
………………………………………………………………………………………………………………………………………………………………..
9. What is the area of this shape?
a) 45cm2
b) 36cm2
c) 22.5cm2
d) 90cm2
………………………………………………………………………………………………………………………………………………………………..
10. What is the area of this shape?
a) 13cm2
b) 20cm2
c) 36cm2
d) 22cm2
………………………………………………………………………………………………………………………………………………………………..
4
Practise
Practise basic area and perimeter.
Do not use a calculator.
1.
a) Write an expression for the perimeter of this shape, simplifying as necessary.
………………………………………………………………………………………………………………………………………………………………..
b) If the perimeter is 34cm, find y.
………………………………………………………………………………………………………………………………………………………………..
2. If the area of this rectangle is 160cm2, find the width.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
5
3. Find the area of this circle, leaving your answer in terms of 𝜋.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4. The area of this trapezium is 24cm2. What is the height?
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
6
5. Here is a triangle and a square. The area of the two shapes is identical.
Find the length of the side of the square.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
7
Practise
Practise basic area and perimeter.
You may use a calculator.
1. The diameter of a bicycle wheel measures 45cm. If the wheel turns 24 times, how farwould the bicycle go in metres? Give your answer correct to 2 d.p.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
2. Find the perimeter of this shape, rounding your answer to 2 d.p.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
3. Tom has a rectangular lawn measuring 41m by 37m. He wants to put weed killer downall over the lawn. The box says that it covers 60m2 of the lawn. How many boxesshould he buy?
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
8
4. The area of a parallelogram is 54.7cm2. The base of the parallelogram is 9.1cm. Findthe perpendicular height of the parallelogram. Give your answer correct to 2 d.p.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
5. John has a circular plate that measures 7.1cm across. He wants to paint a rim on theplate. What is the circumference of the plate? Give your answer in cm correct to 1 d.p.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
9
Lesson 2
Compound Area and Perimeter
PODS
4. Composite Shapes | MATHS-33-003
Quiz
Watch the pod and answer the following questions.
1. Find the value of x.
a) 7m
b) 13m
c) 9m
d) 11m
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
1
2. Find the value of y.
a) 7m
b) 5m
c) 3m
d) 1m
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
3. What is the perimeter of this shape?
a) 60m
b) 65m
c) 72m
d) 74m
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
2
4. What is the value of x?
a) 14m
b) 13m
c) 12m
d) 11m
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
5. What is the value of y?
a) 9m
b) 6m
c) 7m
d) 4m
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
3
6. What is the perimeter of this shape?
a) 94m
b) 92m
c) 108m
d) 85m
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
7. Find the perimeter of this shape.
a) 24cm
b) 30cm
c) 48cm
d) 46cm
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4
8. Find the area of this shape, in cm2 ,correct to 1 d.p. All lengths are given in cm.
a) 31.4cm2
b) 15.7cm2
c) 157.1cm2
d) 39.3cm2
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
9. This shape is made up of 5 identical rectangles. What is the length of one of thoserectangles?
a) 6cm
b) 9cm
c) 7cm
d) 8.5cm
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
5
10. What two shapes is this compound shape made from?
a) Rectangle and a trapezium
b) Rectangle and a parallelogram
c) Parallelogram and a trapezium
d) Rectangle and a triangle
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
6
Practise
Practise basic area and perimeter.
Do not use a calculator.
1. Find the area of this shape.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
2. Find the shaded area.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
7
3. Find the area of this compound shape.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4. Find the area of this shape.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
8
5. This shape is made up of five identical rectangles. Find the total area.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
9
Practise
Practise basic area and perimeter.
You may use a calculator.
1. Find the area of the shape below:
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
2. Find the area of this shape. It has one line of symmetry and all lengths are given in cm.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
10
3. Find the shaded area. All lengths are given in metres.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4. Find the perimeter of this shape, giving your answer correct to 1 d.p. All lengths are incm.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
11
5. Find the area of this shape, giving your answer correct to 2 d.p. All lengths are in cm.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
12
Lesson 3
Volume and Surface Area
POD
5. Prisms | MATHS-33-006
Quiz
Watch the pod and answer the following questions.
1. Which of the following can be a unit of surface area?
a) m2
b) cm
c) cm3
d) kg
………………………………………………………………………………………………………………………………………………………………..
2. Which of these shapes is NOT a prism?
a) Cube
b) Cuboid
c) Pyramid
d) Cylinder
………………………………………………………………………………………………………………………………………………………………..
1
3. Find the volume of this prism.
a) 150cm
b) 150cm2
c) 150cm3
d) 190cm2
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4. How many faces does this prism have?
a) 3
b) 4
c) 5
d) 6
………………………………………………………………………………………………………………………………………………………………..
2
5. What is the name of this prism?
a) Triangular pyramid
b) Triangular prism
c) Tetrahedron
d) Cuboid
………………………………………………………………………………………………………………………………………………………………..
6. This pentagonal prism has cross-section with an area of an area of 21.5cm2 and alength of 45cm. What is the volume of the prism?
a) 967.5cm3
b) 66.5cm3
c) 322.5cm3
d) Not enough information
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
3
7. Find the volume of a cube with sides 7cm.
a) 21cm3
b) 49cm3
c) 294cm3
d) 343cm3
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
8. Find the surface area of a cube with sides 3cm.
a) 54cm2
b) 27cm2
c) 216cm2
d) 9cm2
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
9. What is the volume of this cuboid?
a) 180cm3
b) 120cm3
c) 148cm3
d) 15cm3
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4
10. What is the surface area of this cuboid?
a) 105cm3
b) 142cm2
c) 210cm2
d) 156cm2
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
5
Practise
Practise volume and surface area.
Do not use a calculator.
1. Find the volume of this prism.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
2. Find the surface area of this prism.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
6
3. Find the surface area of a cuboid measuring 4cm by 2cm by 9cm.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4. Find the volume of this prism, leaving your answer in terms of 𝜋.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
5. Find the volume of this trapezoidal prism.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
7
Practise
Practise basic area and perimeter.
You may use a calculator.
1. Find the surface area of this prism.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
2. Find the surface area of this closed cylinder, giving your answer to 2 d.p.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
8
3. Find the surface area of this prism.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4. Find the volume of this prism.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
5. The volume of a cuboid is 168cm3. The base of the cuboid measures 4cm by 6cm. What is the height?
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
9
Lesson 4
Further Length, Area and Volume
PODS
6. Other 3D Shapes | MATHS-33-008
7. Parts of Circles | MATHS-33-005
Quiz
Watch the pod and answer the following questions.
1. Which of the following is a prism?
a) Sphere
b) Cone
c) Cylinder
d) Pyramid
………………………………………………………………………………………………………………………………………………………………..
2. What is the formula to calculate the volume of the pyramid drawn below?
a) v = l x w x h
b) v= ½ x l x w x h
c) v = 1/3 x l x w x h
d) v = 3 x l x w x h
………………………………………………………………………………………………………………………………………………………………..
1
3. Which of the following is NOT the formula for the volume of a sphere?
a) 𝑣 = $%× 𝜋 × 𝑟(
b) 𝑣 = $%× 𝜋 × 𝑟%
c) 𝑣 = $%× 𝜋 × 𝑟 × 𝑟 × 𝑟
d) 𝑣 = $)*+
%
………………………………………………………………………………………………………………………………………………………………..
4. Calculate the volume of a sphere with a radius of 3cm, leaving your answer in terms of
π.
a) 108 π cm3
b) 36 π cm3
c) 36 π3 cm3
d) 12 π cm3
………………………………………………………………………………………………………………………………………………………………..
5. The surface area of a sphere is calculated using the formula A= 4πr2. Use this formula
to calculate the surface area of a sphere with radius 3cm.
a) 113.1cm2
b) 1421.2cm2
c) 28.3cm2
d) 36cm2
………………………………………………………………………………………………………………………………………………………………..
2
6. Calculate the area of the sector which has radius 4cm
a) 50.3cm2
b) 15.6cm2
c) 37.7cm2
d) 118.4cm2
………………………………………………………………………………………………………………………………………………………………..
7. Calculate the area of the sector:
a) 12.6cm2
b) 50.3cm2
c) 157.9cm2
d) 16cm2
………………………………………………………………………………………………………………………………………………………………..
8. Calculate the perimeter of the sector:
a) 12.6cm
b) 20.6cm
c) 22.3cm
d) 28.6cm
………………………………………………………………………………………………………………………………………………………………..
3
9. Which of the following is not the volume of the cone?
a) ,)%𝑐𝑚%
b) 8.38 cm3
c) 26.3 cm3
d) /%× 𝜋 × 8𝑐𝑚%
………………………………………………………………………………………………………………………………………………………………..
10. Calculate the volume of this shape:
a) 37.7 cm3
b) 763.4 cm3
c) 339.3 cm3
d) 3053.6 cm3
………………………………………………………………………………………………………………………………………………………………..
4
Practise
Practise further length, area and volume.
Do not use a calculator.
1. Calculate the area of the minor sector AOB, giving
your answer in terms of π.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
2. Calculate the perimeter of the minor sector AOB,
leaving your answer in terms of π.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
3. Calculate the volume of the pyramid:
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
5
4. The diagram shows a hemisphere with a radius = 1cm. Calculate the volume of the
hemisphere, leaving your answer in terms of π.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
5. Calculate the volume of the cone, leaving your
answer in terms of π.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
6
Practise
Practise further length, area and volume. You may use a calculator.
1. Calculate the area and perimeter of this sector.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
2. Calculate the volume of the cone.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
3. The diagram shows a cylinder attached to a hemisphere. Calculate the volume of the entire shape.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
7
4. A cone has a volume of 30π cm3 and a height of 10 cm. Calculate the radius of the
cone.
………………………………………………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………………………………………………
5. The sector of a circle is shown.
Jane calculates the perimeter of the sector as follows:
Perimeter = /2(%32
× 𝜋 × 2 × 8
= 102360
× 𝜋 × 16
= 14.2𝑐𝑚
Is Jane correct? You must give reasons for your answer.
………………………………………………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………………………………………………
8
Apply
Apply what you have revised about perimeter, area and volume.
Do not use a calculator.
Remember
It is important that you remember the formulae for calculating the area of different shapes:
Rectangle and parallelogram = base x perpendicular height
Triangle = (base x perpendicular height) ÷ 2 – it is a very common error to forget to halve when working with this formula!
Circles: area = πr2 and circumference = πd – don’t muddle up the radius and diameter – the
diameter is the long one as it is the longer word!
Trapezium = 1/2 (top + bottom) × height
Don’t forget your units and whether they are squared (area) or cubed (volume)
For composite shapes, split them up on the drawing and check your lengths very carefully.
For surface area write out the area of each face first before adding them all together – check you have all of the faces.
1. The diagram shows the plan of a rectangular garden with two circular flower beds.Apart from the flower beds, the rest of the garden is covered in grass. Estimate thearea of the grass.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
1
2. Find 75% of the area of this triangle.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
3. Find the area of a circular plate where the diameter measures 18cm. Leave your
answer in terms of𝜋.
Area = 𝜋𝑟(
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4. Find the volume of this prism. You must state your units.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
2
5. A wall of a building has the shape below:
Joanna wants to paint the wall. The paint costs £4.70 for enough to cover 4m2. How much will it cost to buy the paint?
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
6. A can of soda has the shape of a cylinder. The radius of the base measures 4cm and the height of the can is 10cm. Work out the volume of this cylinder, leaving your
answer in terms of 𝜋.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
7. This semi-circle has diameter of 20cm.
Show that the perimeter of this semi-circle is 10 (π + 2) cm.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
3
8. Ellis has a container in the shape of a cuboid.
He wants to paint all of the faces of the container except for the base.
Each tin of paint covers 15m2 of space.
How many tins should he buy?
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
9. Calculate the shaded area. Leave your answer in terms of 𝜋.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
10. A cube has volume 64cm3. Find the surface area of the cube.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4
Apply
Apply what you have revised about probability.
You may use a calculator.
Remember
It is important that you remember the formulae for calculating the area of different shapes:
Rectangle and parallelogram = base x perpendicular height
Triangle = (base x perpendicular height) ÷ 2 – it is a very common error to forget to halve when working with this formula!
Circles: area = πr2 and circumference = πd – don’t muddle up the radius and diameter – the
diameter is the long one as it is the longer word!
Trapezium = 1/2 (top + bottom) × height
Don’t forget your units and whether they are squared (area) or cubed (volume)
For composite shapes, split them up on the drawing and check your lengths very carefully.
For surface area write out the area of each face first before adding them all together – check you have all of the faces.
1. Barbara has a rectangular garden with 2 circular ponds. She wants to put a small fencearound the edge of the garden and around both ponds. Work out the length offencing that she needs to buy. Give your answer to 1 d.p.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
5
2. You empty a full cuboid of water which measures 7cm by 5cm by 3cm into another cuboid which measures 3cm by 2cm by 22cm and is oriented as shown in the diagram. How far up the second cuboid does the water reach?
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
3. A tunnel 200m long is dug. The cross-section is made up of a rectangle and a semi-circle. What is the volume of the tunnel? Give your answer correct to 2 decimal places.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
4. The volume decreases by 5% when ice melts into water. Tina has an ice cube with each side measuring 3cm. What will be the volume of water when it melts?
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
6
5. Find the volume of this cylinder. Give your answer correct to the nearest wholenumber.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
6. A can has the shape of a cylinder. There is a label on the can which is 6.5cm high. Itneeds to be 1cm extra length so that it can be glued. Work out the area of the label incm2.
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
7
7. Find the volume of this prism:
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
8. Find the shaded area:
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
8
9. The diagram shows two boxes that are both the shapes of cuboids. How many of thelittle boxes fit into the bigger box?
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
………………………………………………………………………………………………………………………………………………………………..
10. A racing track has the following shape:
It consists of two semi-circles and two straight lines. Each line is 75m long. The total
perimeter is 400m long. Find the distance across the track, marked 𝑥. Give your
answer correct to 2 d.p.
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9
Answer Keys
Please refer to workbook for question content
Module 8
Perimeter, Area and Volume
Lesson 1
Basic Area and Perimeter
Quiz
1. c) m2
2. b) 28cm2
3. d) 42cm
4. c) 42cm2
5. c) 50.27cm2
6. d) 18.8cm
7. a) 25.1cm
8. b) 12cm
9. a) 45cm2
10. d) 22cm2
1
Practise (Non-Calculator)
1. a) 12 + y + 12 + y = 24 + 2yb) 24 + 2y = 34
2y = 10y = 5
2. To work out the area: 20 x width = 160
Solve 160 ÷ 20 = 8cm
3. Area = π x 11 x 11 = 121π cm2
4. (8 + 4) x height ÷ 2 = 24
12 x height = 48
Height = 4cm
5. Area of triangle = ½ x 8 x 9 = 36
Area of square = 36
Side of square = √36 = 6cm
2
Practise (Calculator)
1. We need the circumference here so π x 45 = 141.371669
It will rotate 24 times and 24 x 141.371669 = 3392.92cm
The question wants the answer to be in metres so divide by 100 = 33.93m
2. Circumference of the whole circle = π x 10 = 31.416
Half the circumference = 15.71
Need to add the base as perimeter is all the way round
25.71cm
3. Area of lawn = 1517m2
Weed killer: 1517 ÷ 60 = 25.28
Tom needs to buy 26 boxes
4. 54.7 ÷ 9.1 = 6.01cm
5. π x 7.1 = 22.3cm
3
Lesson 2
Compound Area and Perimeter
Quiz
1. c) 9m
2. c) 3m
3. c) 72m
4. d) 11m
5. c) 7m
6. a) 94m
7. c) 48cm
8. d) 39.3cm2
9. b) 9cm
10. a) Rectangle and a trapezium
4
Practise (Non-calculator)
1. Missing sides: 4 – 2 = 2 and 8 – 5 = 3
Area 1 = 8 x 2 = 16
Area 2 = 2 x 5 = 10
Total = 16 + 10 = 26cm2
2. Area of big rectangle = 8 x 10 = 80
Area of small rectangle = 3 x 4 = 12
Shaded area = 80 – 12 = 68 units2
3. Area of rectangle = 6 x 8 = 48
Area of trapezium = (4 + 8) x 5 ÷ 2 = 30
Total area = 48 + 30 = 78 units2
4. Easiest way of doing this one is to subtract the area of the white rectangle from the
area of the pink and white rectangles combined.
Pink rectangle = 6 x 14 = 84
White rectangle = 8 x 4 = 32
Shaded area = 84 – 32 = 52 units2
5
5. Length of one rectangle = (39 – 6 – 6) ÷ 3 = 9cm
One rectangle = 9 x 6 = 54 cm2
Five rectangles = 54 x 5 = 270cm2
6
Practise (Calculator)
1. Split into 3 rectangles
x = 26 – 10 – 7 = 9
y + 14 = 17 + 13 y = 16
Area 1 = 17 x 9 = 153
Area 2 = 10 x 30 = 300
Area 3 = 7 x 16 = 112
Total = 565 units2
2. Area of rectangle = 8 x 16 = 128
Base of triangles = (16-6)/2 = 5
Area of one triangle = 3 x 5 ÷ 2 = 7.5
Total = 128 + 7.5 + 7.5 = 143cm2
3. Area of rectangle = 8 x 11 = 88m2
Area of trapezium = (2 + 4) x 5 ÷ 2 = 15m2
Area of shaded = 88 – 15 = 73m2
4. Circumference of circle = π x 3 = 9.425cm
Halve it for the semi-circle = 4.712cm
Perimeter = 4.712 + 7 + 7 + 3 = 21.7cm
(Note – remember that you do not have to include the right hand side of the
rectangle, as it does not form an external length)
5. Area of rectangle = 7 x 3 = 21 cm2
Area of semi-circle = π x 1.52 ÷ 2 = 3.53cm2
Total area = 21 + 3.53 = 24.53 cm2
7
Lesson 3
Volume and Surface Area
Quiz
1. a) m2
2. c) Pyramid
3. c) 150cm3
4. c) 5
5. b) Triangular prism
6. a) 967.5cm3
7. d) 343cm3
8. a) 54cm2
9. b) 120cm3
10. b) 142cm2
8
Practise (Non-Calculator)
1. Area of the cross section = 3 x 4 ÷ 2 = 6
Volume = 6 x 7 = 42cm3
2. Front: 3 x 4 ÷ 2 = 6
Back: 3 x 4 ÷ 2 = 6
Side: 3 x 7 = 21
Base: 4 x 7 = 28
Top: 5 x 7 = 35
Total = 96cm2
3. Front and back: 4 x 2 x 2 = 16cm2
Top and bottom: 4 x 9 x 2 =72cm2
Side and side: 2 x 9 x 2 =36cm2
Total = 124cm2
4. Volume = area of circle x height
π x 32 x 8 = 72π cm3
5. Volume = area of trapezium x length
Area of trapezium = (3 + 12) x 4 ÷ 2 = 30cm2
Volume of prism = 30 x 10 = 300cm3
9
Practise (Calculator)
1. Front and back: 22 x 2.9 x 2 = 127.6cm2
Side and side: 22 x 2 x 2 = 88cm2
Top and bottom: 2.9 x 2 x 2 = 11.6cm2
Total = 227.2cm2
2. Circle on the top = π x 32 = 28.274cm2
Circle on the bottom = π x 32 = 28.274cm2
The curved surface area is the circumference x height (a rectangle).
Curved surface area = π x 6 x 11 = 207.345cm2
Total = 263.89cm2
3. Trapezium = (9 + 3) x 4 ÷ 2 = 24cm2
Trapezium at back = (9 + 3) x 4 ÷ 2 = 24cm2
Rectangles 5 x 15 = 75cm2
3 x 15 = 45cm2
5 x 15 = 75cm2
9 x 15 = 135cm2
Total = 378cm2
4. Area of front face is made of two rectangles, both 9cm by 2cm
Area of front face = 9 x 2 + 9 x 2 = 36cm2
Volume of prism = 36 x 8 = 288cm3
5. Volume = 4 x 6 x height = 168cm3
Height = 168 ÷ 4 ÷ 6 = 7cm
10
Lesson 4
Further Length, Area and Volume
Quiz
1. c) Cylinder
2. c) v = 1/3 x l x w x h
3. a) v = $%× π × r)
4. b) 36 π cm3
5. a) 113.1 cm2
6. c) 37.7 cm2
7. b) 50.3 cm2
8. d) 28.6cm
9. c) 26.3 cm3
10. d) 3053.6 cm3
11
Practise (Non-Calculator)
1. Area = *)+%,+
× 𝜋 × 4) = *%× 16𝜋 = *,
%𝜋𝑐𝑚)
2. Perimeter = *)+%,+
× 𝜋 × 8 + 4 + 4
= 6%𝜋 + 8𝑐𝑚
3. Volume = 1/3 x base area x height
= 1/3 x 100 x 18
= 600 cm^3
4. Volume =
789:
8
) =
789
)= )
%𝜋𝑐𝑚%
5. Volume = *%× 3) × 𝜋 × 11
=13× 99 × 𝜋
= 33𝜋𝑐𝑚%
12
Practise (Calculator)
1. Area = ,+%,+
× 𝜋 × 8) = 33.5𝑐𝑚)
Perimeter = ,+%,+
× 𝜋 × 16 + 16 = 24.4𝑐𝑚
2. Volume = *%× 𝜋 × 8) × 15 = 1005.3𝑐𝑚%
3. Volume of cylinder = 𝜋𝑟)ℎ = 𝜋 × 3) × 7 = 63𝜋
Volume of hemisphere = $,× 𝜋 × 𝑟% = $
,× 𝜋 × 3% = 18𝜋
Total volume = 63π + 18 π = 81 π cm3
81 π = 254.5cm3
4. Volume of a cone = *%× 𝜋 × 𝑟) × ℎ
30𝜋 = 13× 𝜋 × 𝑟) × 10
30 = 13× 𝑟) × 10
90 = 𝑟) × 10
9 = 𝑟)
3𝑐𝑚 = 𝑟
5. No, Jane is not correct.
Jane has correctly calculated the arc length of the sector though she has not foundthe entire perimeter.
Jane must add on the value of 2xradius = 16cm.
Correct answer: Perimeter = 30.2cm.
13
Apply (Non-Calculator)
1. Estimate, so round everything.
Rectangle = 10 x 20 = 200m2
Radius of circle = 1.05, round to 1 significant figure = 1
Estimate 𝜋 ≈ 3
Circle area = 𝜋𝑟) =3 x 12 = 3
Grass = 200 – 3 – 3 = 194 m2
2. Area of triangle = (FGHI×JIKLJM))
Area = 6 x 4 ÷ 2 = 12 cm2
75% = 12 ÷ 4 x 3 = 9 cm2
3. Area = πr2
= π x 9 x 9 = 81π cm2
4. Area of triangle = (FGHI×JIKLJM))
= 4 x 5÷ 2 = 10cm2
Volume = 10 x 10 = 100cm3
5. Area of trapezium = (5 + 6) x 8 ÷ 2 = 44 cm2
44 ÷ 4 = 11She needs 11 cans4.70 x 11 = £51.70
6. Volume of cylinder = π x 42 x 10 = 160π cm3
14
7. Circumference of whole circle = π x 20
Curved part of the semi-circle = π x 20 ÷ 2 = 10π
Add on the bottom side = 10π + 20
Factorise = 10 (π + 2)
8. Surface area to be painted:
Front and back: 9 x 5 x 2 = 90 m2
Left and right: 2 x 5 x 2 = 20 m2
Top = 9 x 2 = 18 m2
Total = 128 m2
128 ÷ 15 = 8 remainder 8
15 goes into 128 8 times plus 8 left over.
Therefore, he needs to buy 9 tins of paint
9. Circle = π x 52 = 25π
Semi-circle = (π x 22 ) / 2 = 4 π ÷ 2 = 2π
Shaded area = 25π – 2π = 23π cm2
10. Each side = √648 = 4
Area of each side = 4 x 4 = 16 cm2
Total surface area = 16 cm2 x 6 = 96cm2
15
Apply (Calculator)
1. Perimeter of rectangle = 7.9 x 2 + 18.3 x 2 = 52.4m
Circumference of one circle = π x 3.2 = 10.053
Total length of fencing needed = 52.4 + 10.053 + 10.053 = 72.5m
2. Volume of first cuboid = 7 x 5 x 3 = 105cm3
For second cuboid = 105 = 3 x 2 x height
Height = 105 ÷ 6 = 17.5cm
3. Rectangle = 8 x 10 = 80m2
Semi-circle = π x 5 x 5 ÷ 2= 39.2699m2
Total = 119.2699 m2
Volume = 119.2699 x 200 = 23853.98m3
4. Volume of ice cube = 3 x 3 x 3 = 27cm3
5% of 27 = 1.35
New volume = 27 – 1.35 = 25.65cm3
5. π x 62 x 15 = 1696cm3
6. Length of label = circumference of can + 1cm overlap
= π x 7 + 1 = 22.99cm
Area = 22.99 x 6.5 = 149.4cm2
7. Area of cross-section 8 x 2 + 4 x 2 = 24 cm2
Volume 24 x 11 = 264cm3
16
8. Easiest way is to find the area of the rectangle and then subtract the trapezium area.
Rectangle = 12 x 8 = 96 cm2
Trapezium = (12 + 7) x 3.5 ÷ 2 = 33.25 cm2
Shaded area = 96 – 33.25 = 62.75cm2
9. Up the side 20 ÷ 5 = 4
Along the bottom 12 ÷ 2 = 6
Across the box 9 ÷ 3 = 3
So 3 x 6 x 4 boxes fit = 72 boxes
10. 400 – 75 – 75 = 250m
This is the circumference of a full circle as there are two semi-circles.
π x diameter = 250m
x = 79.58m
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