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12-2 Surface Areas of Prisms and Cylinders
Find the lateral area and surface area of each
prism. Round to the nearest tenth if necessary.
2
2
L §FP ; S §FP
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and surface area of each cylinder. Round to the
nearest tenth.
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2
Sample answer: L = 126 m ; S = 151.9 m
2
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L §IW2 ; S §IW2
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L = 9 mm2 ; S = 13.5 mm2
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2
2
L §FP ; S §FP
Use the given lateral area and the diagram to
find the missing measure of each solid. Round
to the nearest tenth if necessary.
2
L = 48 in
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2
2
L §FP ; S §FP
triangular prism: h = 6 inches, right triangle base with
legs 9 inches and 12 inches
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L = 216 in2 ; S = 324 in2
CEREAL Find the lateral area and the surface
area of each cereal container. Round to the
nearest tenth if necessary.
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2
2
L §FP ; S §FP
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h = 4 in.
A right rectangular prism has a surface area of 1020
square inches, a length of 6 inches, and a width of 9
inches. Find the height.
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30.4 in.
MONUMENTS The monolith shown mysteriously
appeared overnight at Seattle, Washington¶s
Manguson Park. It is a hollow rectangular prism 9
feet tall, 4 feet wide, and 1 foot thick.
a. Find the area in square feet of the structure¶s
surfaces that lie above the ground.
b. Use dimensional analysis to find the area in square
yards.
CCSS SENSE-0$.,1*)LQGWKHODWHUDODUHD
and surface area of each cylinder. Round to the
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nearest tenth.
5HIHUWRWKHSKRWRRQ3DJH
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2
a. 94 ft
b. 10.4 yd2
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square inches, a length of 6 inches, and a width of 9
inches. Find the height.
12-2$16:(5
Surface Areas of Prisms and Cylinders
30.4 in.
MONUMENTS The monolith shown mysteriously
appeared overnight at Seattle, Washington¶s
Manguson Park. It is a hollow rectangular prism 9
feet tall, 4 feet wide, and 1 foot thick.
a. Find the area in square feet of the structure¶s
surfaces that lie above the ground.
b. Use dimensional analysis to find the area in square
yards.
5HIHUWRWKHSKRWRRQ3DJH
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2
a. 94 ft
b. 10.4 yd2
Use isometric dot paper to sketch each prism.
triangular prism 2 units high with bases that are right
triangles with legs 3 units and 4 units long
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