SOLUTION: The ratio of the side lengths in a rectangle is 5:2:5:2, and its area is 90 square feet. Find the side lengths.

Algebra ->  Rectangles -> SOLUTION: The ratio of the side lengths in a rectangle is 5:2:5:2, and its area is 90 square feet. Find the side lengths.      Log On


   

Question 945379: The ratio of the side lengths in a rectangle is 5:2:5:2, and its area is 90 square feet. Find the side lengths.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
L%2FW=5%2F2
L=W%285%2F2%29
For a rectangle,
A=L%2AW
90=W%285%2F2%29W
W%5E2=180%2F5
W%5E2=36
W=6
Then,
L=6%285%2F2%29
L=15