SOLUTION: The length of a rectangle is four times its width. If the perimeter of the rectangle is , find its area.

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Question 671656: The length of a rectangle is four times its width.
If the perimeter of the rectangle is , find its area.








Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
l = 4w
p = 2(l) + 2(w)
...
p = 2(4w) + 2w
p = 8w + 2w = 10w
p = 10w
highlight_green%28w+=+p%2F10%29
...
a = (l)(w)
a = (4w)(p/10)
a = %284%28p%2F10%29%29%28p%2F10%29
highlight_green%28a+=+%284p%2F10%29%28p%2F10%29%29
...
Without having the value of the perimeter, this is the closest you can get. Plug in the value of perimeter to solve for area.
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