SAT Math : How to find the surface area of a prism

Study concepts, example questions & explanations for SAT Math

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Example Questions

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Example Question #21 : Prisms

Box 3

The shaded face of the above rectangular prism is a square. In terms of , give the surface area of the prism.

Possible Answers:

Correct answer:

Explanation:

Since the top face of the prism is a square, the common sidelength - and the missing dimension - is 25.

The surface area  of a rectangular prism with length , width , and height  can be found using the formula

.

Setting, and solving for :

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