Question 669977
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Hi,
<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/PerimeterRectangle.svg/200px-PerimeterRectangle.svg.png">
 P = 2L + 2W = 42'
      L + W = 21'     ||| L = 7' &#8658;  W = 14'