17-07-2017
Mathematics

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Each base of a triangular prism is a right triangle with side lengths 3 inches, 4 inches, and 5 inches. The height of the prism is 7 inches. What is the surface area?

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17-07-2017

Area of the base = 3*4 / 2 = 6
Area of BOTH bases = 12 sq inches
Area of one face = 3 * 7 = 21 sq inches
Area of 2nd face = 4 * 7 = 28 sq inches
Area of 3rd face = 5 * 7 = 35 sq inches

TOTAL Area = 96 sq inches

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