7th Grade Math

Test PracticeT

610 Volume and Surface Area

22. MONEY Over the weekend, Mr. Lobo spent $534. Of that, about 68% was
    spent on groceries. About how much money was not spent on groceries?
    Use the solve a simpler problem strategy. (Lesson 3A)

Find the surface area of each pyramid. (Lesson 2E)

23. 8 cm

7.1 cm

7.1 cm

24. 9 mm

10 mm

10 mm

Find the surface area of each cylinder. Round to the nearest tenth. (Lesson 2C)

25.

14 ft

14 ft^ 26.

12 m

8 m^

27. MEASUREMENT A cylinder has a height of 10 feet and a diameter of 8 feet.
    What is the volume of the cylinder? Round to the nearest tenth.(Lesson 1C)


28. Jaime is covering the decorative wall art
    shown below in felt, including the back
    and bottom.
    4 in.
    3 in.

3 in.

5 in.

7 in.

1 in.

What is the total area to be covered

with felt?

A. 23 in^2

B. 117 in^2

C. 172 in^2

D. 1,260 in^2

21. Which of the following formulas cannot
    be used to find the volume of the
    composite figure?

2 h

h

r

F. V = 2 πr^2 h + _ 31 πr^2 h

G. V = _^73 πr^2 h

H. V = πr^2 (2h) + _^13 πr^2 h

I. V = _^23 πr^2 h

604_610_C10_L3_895130.indd 610 1/13/10 12:07 PM