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Find the total surface area of this triangular prism.
18 cm
30 cm
24 cm
7 cm

Find the total surface area of this triangular prism. 18 cm 30 cm 24 cm 7 cm-example-1

1 Answer

5 votes

Answer:

936 cm^2

Explanation:

Solution

Back (This is a rectangle)

Area = w * h

w = 7

h = 18

Area = 7 * 18 = 126 cm^2

Front and Back

Area = 1/2 * B * H (This is a triangle -- There are 2 of them)

Givens

B = 24

h = 18

Area = 1/2 * 24 * 18

Area = 216

But there are two such triangles = 2*216 = 432 cm ^2

Ramp

Formula Area = L*w (This is a rectangle)

L = 30

W = 7

Area = 30 * 7 = 210 cm^2

Base

This is also a rectangle

L = 24

W = 7

Area = L*W

Area = 24 *7 = 168 cm^2

Total

168 cm^2

210 cm^2

432 cm^2

126 cm^2

936 cm^2

User Naszta
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