Lesson 5 HandoutTask 2:

Question Answers

1. Give 3 examples of rational numbers

2. What is the most well known irrational number?

3. Describe the difference between rational and irrational number?

Task 3: Features of a circle1. Label the following features of a circle:

a. Centreb. Circumferencec. diameter d. radius

2. How would you describe each feature of the circle to someone who doesn’t know what they are?

a) Centre

b) Circumference

c) Diameter

d) Radius

Lesson 6 Handout

Task 2: Circle calculationsCalculate the circumference and area of the following circles and part circles. Use the π button on your scientific calculator and round answers to two decimal places.

Circles Circumferencewith working out

Areawith working out

Diameter = 20 cm

What does the radius equal?

C = πdC = π x ___C = _______

Area=π x r2

Area=π x ¿¿2¿

Area=π x¿

Radius = 33km

What does the diameter equal?

C = πdC = π x ___C = _______

Area=π x r2

Area=π x ¿¿2¿

Area=π x¿

Task 3: Developing FluencyCalculate the circumference and area of the following circles and part circles. Use the π button on your scientific calculator and round answers to two decimal places.

Question 1Show your working out

Question 2Show your working out

Question 3Show your working out

Radius: 11 cm Radius: 7 mm Radius:

Diameter: Diameter: Diameter: 40 cm

Circumference: Circumference: Circumference:

Area: Area: Area:

Question 4Show your working out

Question 5Show your working out

Question 6Show your working out

Radius: Radius: Radius:

Diameter: 16 mm Diameter: 36 cm Diameter: 34 mm

Circumference: Circumference: Circumference:

Area: Area: Area:

Question 1Show your working out

Question 2Show your working out

Question 3Show your working out

Radius: Radius: 19 mm Radius: 16 cm

Diameter: 30 cm Diameter: Diameter:

Circumference: Circumference: Circumference:

Area: Area: Area:

Lesson 7 Handout

Task 2: Developing FluencyCalculate the circumference and area of the following circles and part circles. Use the π button on your scientific calculator and round answers to two decimal places.

Question 1Show your working out

Question 2Show your working out

Question 3Show your working out

Radius: Radius: Radius:

Diameter: Diameter: Diameter:

Circumference: Circumference: Circumference:

Area: Area: Area:

Task 3: Area and Circumference

Online Maths Learning Questions – Only complete if you haven’t done them online

https://www.onlinemathlearning.com/circumference-worksheets.html

IXL Questions Online - Only complete if you haven’t done them online

https://au.ixl.com/math/year-8/circles-calculate-area-circumference-radius-and-diameter

Area and Circumference Questions

Question: AREA AnswerShow your working out

Questions: CIRCUMFERENCE AnswersShow your working out

6. Which circle has a circumference of 50.24 cm2 Answer: The yellow

circle with the 8cm radius

7. Which circle has a circumference of 125.60 cm2

8. Which circle has a circumference of 37.68cm2

9. Which circle has a circumference of 6.28cm2

Lesson 8 Handout

Task 2: Problem SolvingCalculate the circumference and area of the following circles and part circles. Use the π button on your scientific calculator and round answers to two decimal places.

Question Circumferencewith working out

Areawith working out

1.

2.

Question AnswerShow your working out

3.

4.

5.

6.

Explain why giving mathematical reasoning.

7.

8.

Warm up Week 2 – x8 HandoutMultiplication Worksheets