Geometry

What is the formula for finding the surface area of a right rectangular prism? (ex: The base of a right rectangular prism is 10 ft by 7 ft. The height is 3 ft. Find the surface area)

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asked by Cara
  1. The total surface area of a rectangular prism is
    2(ab + ac + bc)
    where a, b and c are the three side lengths.

    It would be 2(70 + 30 + 21) = 242 ft^2 for the figure you describe.

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    posted by drwls

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