SOLUTION: The length of a rectangle is twice its width. If the perimeter of the rectangle is 30in , find its area.

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Question 383321: The length of a rectangle is twice its width.
If the perimeter of the rectangle is 30in , find its area.
Answer by Fombitz(13828) About Me  (Show Source):
You can put this solution on YOUR website!
L=2W
For a rectangle,
P=2L%2B2W
P=2%282W%29%2B2W
6W=30
highlight%28W=5%29inches
Then,
L=2%285%29
highlight%28L=10%29inches