NAME _____________________________________________ DATE __________________ PERIOD _________
Lesson 7 Homework Practice
Surface Area of Pyramids
Find the total surface area of each pyramid. Round to the nearest
tenth if necessary.
279 in2
1.
2.
18 ft
1440 ft2
11 in.
24 ft
24 ft
9 in.
9 in.
207.7 cm2
3.
278.1 m2
4.
18 m
15 cm
8 cm
9m
8 cm
8 cm
9m
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area of base
27.7 cm2
9m
area of base
35.1 m2
5.
16.3 ft
1,052 ft2
585 in2
6.
16 in.
20 ft
20 ft
13 in.
223.3 m2
7.
13 in.
8.
7m
7m
12 m
7m
10 m
10 m
94.7 in2
10 m
area of base
43.3 m2
7m
area of base
21.2 m2
9. MODEL HOUSE Baron built a square pyramid block to use as the roof of a model house
he was making. The square base had sides of length 8 inches and the slant height was
6 inches. Find the surface area of the block. Round to the nearest tenth. 160 in2
Course 2 • Chapter 8 Measure Figures
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