A rectangular monument has a square base with a side of 10 feet. If 210 square feet of cardboard is needed to create a

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A rectangular monument has a square base with a side of 10 feet. If 210 square feet of cardboard is needed to create a 1/2 scale model of the monument, what is the volume of the monument in cubic feet?

A. 100
B. 200
C. 400
D. 800
E. 1600

Answer: E

Source: Economist
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