8/14/2019 Unit Eight Study Guide

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Name:

Date:

Unit Eight Study Guide

1. Find the perimeter of each polygon.

2 m

2 m

Number model:

Perimeter m=

2. Find the perimeter of the figure.

17 m

10 m

20 m

7 m

?

?

Number model:

Perimeter m=

3. What is the area of the polygon?

1 unit

4. What is the area of the polygon?

1 unit

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5. Draw a rectangle with an area of 9 cm2 and a perimeter of 12 cm.

6. Mrs. Lopez wants to tile her dining room floor. The room is 12 feet wide and 25 feet long.

a. How many 1-square-foot tiles does she need to cover the floor?

b. Suppose Mrs. Lopez chooses tiles that are 3 inches on each side. How many 3-inch tiles would she needin order to cover her dining room floor? Explain how you got your answer.

3 in.

3 in.

7. Add or subtract.

a. =2

5

3

5+

b. = 23

23

+

c.3

3

1

3 = _____

d.2

5

1

5 = _____

8. Add or subtract.

a.4

6

5

6+ =

b. = +11

4

13

14

c. 11

4

13

14 =

d. = 6

5

1

2

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9. If you spin the spinner 600 times, how many times would you expect it to land:

a. on R?

b. on B?

c. on Y?

R

B

Y

10. A bag contains 4 blue blocks, 5 purple blocks, 4 green blocks, and 5 yellow blocks. You put your hand in

the bag and pull out a block. About what fraction of the time would you expect to get a yellow block?

11. Complete the following measures for the rectangle below.

Formula for the area of a rectangle: Area base height.=

2 cm

Width

width = _____ cm

length = _____ cm

perimeter = _____ cm

area = _____cm2

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12. Complete the following measures for the parallelogram below.

Formula for the area of a parallelogram: Area base height.=

3 cm

base = _____ cm

height = _____ cm

perimeter = _____ cm

area = _____cm2

13. Complete the following measures for the triangle below.

Formula for the area of a triangle: Area1

2base height .= b g

4 cm

5 cm

base = _____ cm

height = _____ cm

perimeter = _____ cm

area = _____cm2

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14. Scale: 1 cm = 5 meters

Dimensions of rectangle: 15 meters by 30

meters.

Make a scale drawing of this rectangle.

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[1]

[2]

Number model:

Perimeter m=

[3] Area = _____ square units

[4] Area = _____ square units

[5]

[6]

a. Answer:__________ tiles

b. Answer:__________ tiles

[7]

a. __________

b. __________

c. __________

d. __________

[8]

a. __________

b. __________

c. __________

d. __________

[9]

a.

b. _____

c. _____

[10]

[11]

width = _____ cm

length = _____ cm

perimeter = _____ cm

area = _____cm2

[12]

base = _____ cm

height = _____ cm

perimeter = _____ cm

area = _____cm2

[13]

base = _____ cm

height = _____ cm

perimeter = _____ cm

area = _____cm2

[14]

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[1]

Number Model: 2 2 2 8+ =b g mPerimeter = 8 m

[2]

Number Model: 17 10 7 20 10 30 94+ + + + + =

Perimeter = 94 m

[3] Area = 34 square units

[4] Area = 30 square units

[5]

Width

3 cm

3 cm

[6]

a. Answer: 300 tiles

b. Answer: 4,800 tiles; It takes sixteen 3-inch tiles to cover one 12-inch tile, so she would need

16 300 4 800* ,tiles tiles.=

[7]

a. 1

b.4

3

c.2

3

d.1

5

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[8]

a.3

2

b. 25

28

c.9

28

d.7

10

[9]

a. 300

b. 200

c. 100

[10]

5

18

[11]

width 2 cm

length = 2 cm

perimeter =

area = 4 cm2

=

8 cm

[12]

base 5 cm

height = 3 cm

perimeter = 16.71 cm

area =15 cm2

=

[13]

base 5 cm

height 4 cm

perimeter 15 cm

area 10 cm2

=

=

=

=

[14]

3 cm

6 cm