SOLUTION: If the lenght of a rectangle is 3 times its width , the area is 12 square miles , what is the perimeter in miles ?
Algebra ->
Rectangles
-> SOLUTION: If the lenght of a rectangle is 3 times its width , the area is 12 square miles , what is the perimeter in miles ?
Log On
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!
