SOLUTION: The length of a rectangle is three times its width. If the area of the rectangle is 243 m2 , find its perimeter.

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Question 965780: The length of a rectangle is three times its width.
If the area of the rectangle is
243

m2
, find its perimeter.
Answer by yogshweta(2) About Me  (Show Source):
You can put this solution on YOUR website!
Let width of rectangle is x meter
Then length is 3x
Area =length * width
243=x*3x
243=3x^2
X^2=81
X=9
Length is 9 meter
Width is 9*3=27 meter
Now, perimeter =2*( length + width)
Perimeter=2*(9+27)=2*36=72 meter
Ans=72 Meter