7th Grade Math

608 Volume and Surface Area

Find the volume of each composite figure. Round to the nearest tenth if

necessary.

Examples 1 and 2

1.

13 in.

6 in.

8 in.

7 in.

2.

25 cm

50 cm

30 cm

Example 3 Find the surface area of each composite figure.

3.

9 cm

18 cm

7 cm

7 cm

3 cm 4.

2 cm

2 cm

2 cm 4 cm 2 cm 4 cm

9 cm

5. DIGITAL CAMERA A digital camera is 1 inch by 3 inches by 4 inches. The
   lens on the front face is 0.5 inch long with a 1-inch diameter. What is the
   surface area of the digital camera? Round to the nearest tenth.

= Step-by-Step Solutions begin on page R1.

Extra Practice begins on page EP2.

Find the volume of each composite figure. Round to the nearest tenth if

necessary.

Examples 1 and 2

6.

20 ft

20 ft

20 ft

15 ft 77

1.8 m

0.8 m

1.1 m

0.7 m

8.

3 m

2.5 m

2 m

4 m

Find the surface area of each composite figure. Round to the nearest tenth

if necessary.

Example 3

9.

8 m

8 m

15 m

20 m

5 m

5 m

8 m

20 m 10. 2 m

6 m

6 m

9 m

16 m

11. 7 m

15 m

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