Question 314961
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The width of the rectangle which is known to be 3 feet, the unknown length of the rectangle, and the diagonal that measures 5 feet form a right triangle.  3-4-5 is a Pythagorean Triple, therefore the missing side of the rectangle must measure 4 feet.  The area of the rectangle is the length times the width, so 3 times 4 is 12 square feet.



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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