A box with an open top and a square base is to be constructed to contain 6,912 cubic inches. Find the dimensions that will require the minimum amount of material to construct the box.
??
A. The dimensions of the box using minimum material are 24 in. by 24 in. by 12 in.
B. The dimensions of the box using minimum material are 21 in. by 21 in. by 17 in.
C. The dimensions of the box using minimum material are 12 in. by 12 in. by 24 in.
D. The dimensions of the box using minimum material are 17 in. by 17 in. by 21 in.
E. The dimensions of the box using minimum material are 21 in. by 21 in. by 12 in.
Answer: A
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