How Many Square Inches in a Square Foot?

To determine how many square inches are in a square foot, we first need to visualize a square foot. It is a square that is one foot long on every side. Since there are 12 inches in a foot, the square is 12 inches by 12 inches, or 144 square inches. You can find more information here: http://mathforum.org/library/drmath/view/57780.html
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