An open box is to be made from a square piece of material by cutting 2-inch squares from the corners and turning up the sides

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#1

An open box is to be made from a square piece of material by cutting 2-inch squares from the corners and turning up the sides. The volume of the finished box is to be 200 cubic inches. Find the size of the original piece of material.

Answer:

2 * (x - 2)^2 = 200 … (x - 2)^2 = 100 … x - 2 = 10