10-Surface Area of Pyramids and Cones

Kuta Software - Infinite Geometry Name___________________________________

Surface Area of Pyramids and Cones Date________________ Period____

Copy the measurements given onto the net of each solid.

1) 2)

26
30

13 20 20

3) 21.9 4)
12 8
13 18
8.9 18

5) 6)

23.4 24

16 33 14

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Find the lateral area and surface area of each figure. Round your answers to the nearest tenth, if
necessary.

7) 8) 11.3 cm

10.6 ft 9 cm

8 ft

9 cm 9 cm
7.8 cm
5.5 ft

9) 10)

12.2 in 6 in 6.3 in
5.2 in
4 in 4 in

11) 12)

12.5 mi 11 mi 11.3 cm
5.2 cm
7.6 mi 6 cm

13) A pyramid with slant height 6.8 mi whose 14) A rectangular pyramid measuring 4 in and 9 in
triangular base measures 11 mi on each side. along the base, with slant heights of 10.1 in and
Each altitude of the base measures 9.5 mi. 9.2 in, respectively.

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Kuta Software - Infinite Geometry Name___________________________________

Surface Area of Pyramids and Cones Date________________ Period____

Copy the measurements given onto the net of each solid.

1) 2)

26
30

13 20 20

30 26
13 20

20

3) 21.9 4)
12 8
13 18
8.9 18

21.9 12
8.9 13 18
18 8

5) 6)

23.4 24

16 33 14
23.4
24
16 14

33

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Find the lateral area and surface area of each figure. Round your answers to the nearest tenth, if
necessary.

7) 8) 11.3 cm

10.6 ft 9 cm

8 ft

9 cm 9 cm
7.8 cm
5.5 ft
152.6 cm²; 187.7 cm²
212 ft²; 322 ft²

9) 10)

12.2 in 6.3 in

6 in 4 in 4 in
5.2 in
50.4 in²; 66.4 in²
219.6 in²; 313.2 in²

11) 12)

12.5 mi 11.3 cm

11 mi 6 cm
5.2 cm
7.6 mi
203.4 cm²; 297 cm²
343.8 mi²; 552.8 mi²

13) A pyramid with slant height 6.8 mi whose 14) A rectangular pyramid measuring 4 in and 9 in
triangular base measures 11 mi on each side. along the base, with slant heights of 10.1 in and
Each altitude of the base measures 9.5 mi. 9.2 in, respectively.

112.2 mi²; 164.5 mi² 123.2 in²; 159.2 in²

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