What is the surface area of a rectangular prism whose base is 5 inches by 6 inches and whose height is 5 inches?

A rectangular prism has three pairs of matching faces, so its surface area is 2(lw + lh + wh). Using dimensions 5, 6, and 5 inches gives 2(5×6 + 5×5 + 6×5) = 2(30 + 25 + 30) = 170 square inches. The correct choice is 170 square inches.

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