Question 435822
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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 = 18 where L is the length and W is the width
P is the Perimeter, the distance 'ALL'away around the rectangle...
OR L + W = 9
THAT IS: the length of one of the sides cannot be 9