Asked by JOY

The surface area of a rectangular prism is 190 square inches, the length is 10 inches, and the width 3 inches. Find the height.

I know how to do SA but I don't understand how to find height if you have SA given.

14 years ago

Answered by drwls

If the height is H,
SA = 2*(10*3) + 2*(10*H) + 2*(3*H) = 190 in^2
60 + 26H = 190
26H = 130
H = 5.0 inches

14 years ago

Answered by JOY

Thank you so much

14 years ago

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