Answer:
5 by 5 by 7.5
Step-by-step explanation:
The surface area of a rectangular prism is given by the formula ...
A = 2(LW +H(L +W)
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There are many ways to choose L, W, and H to give the desired area. One way is to arbitrarily choose L = W = 5, then we have ...
200 = 2(5·5 +H(5 +5))
200 = 20H +50 . . . . . . . simplify
150 = 20H . . . . . subtract 50
H = 7.5 . . . . . . divide by 20
Possible dimensions are ...
5 by 5 by 7.5
