SOLUTION: The length of a rectangle is four times its width. Its perimeer is 90 m. Find its dimentions. Use P= 2l+2w.
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Question 109105: The length of a rectangle is four times its width. Its perimeer is 90 m. Find its dimentions. Use P= 2l+2w.
Answer by HyperBrain(694) (Show Source): You can put this solution on YOUR website!
Let l=length
____w=width
IF length of a rectangle is four times its width, then
The perimeter,
becomes
But, the perimeter is 90 m . SO,
Thus, the width measures 10 m long
again,
Thus, the length measures 40 m long
Power up,
HyperBrain!
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