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A triangular prism has a base that is a right triangle whose sides are in the ratio 5:12:13. If the base perimeter is 60 cm and the prism is 8 cm tall, find the lateral surface area of the prism.

1. 360 cm^2
2. 300 cm^2
3. 480 cm^2
4. 400 cm^2

Correct answer: 480 cm^2

Solution

For any prism, lateral surface area = perimeter of base x height. Here that is 60 x 8 = 480 cm^2.

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