SOLUTION: If the lenght of a rectangle is 3 times its width , the area is 12 square miles , what is the perimeter in miles ?
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Question 866261: If the lenght of a rectangle is 3 times its width , the area is 12 square miles , what is the perimeter in miles ?
Answer by Seutip(231) (Show Source): You can put this solution on YOUR website!
Let:
x - be the width
3x - be the length
Since the area is , which is solved using the formula
It means:
The width is 2 mi and the length is 6 mi.
The perimeter therefore,
Hope that helps!
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