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Mathematics 21 Online
OpenStudy (anonymous):

The surface area of a rectangular prism is found using the formula SA=2(lw+lh+wh), where l is length, w is width, and h is height. If the surface area of a rectangular prism is 324m^2, with length 5m and width 12m. What is the height, in meters? A. 60 B. 5 C. 6 D. -2

OpenStudy (anonymous):

Use this formula...it's easier SA=ph+2B p=perimeter of the base B=area of the base

OpenStudy (anonymous):

324=(5+5+12+12)h+2(5 x 12) Now simplify and solve for h

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