SOLUTION: The width of a rectangle is 3in shorter than the length. The perimeter is 42in. Find the measurement of each side.

Question 937337: The width of a rectangle is 3in shorter than the length. The perimeter is 42in. Find the measurement of each side.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

     .



 2L + 2w = 42in

L + w = 21in

L + (L-3in) = 21in

2L = 24in

L = 12in  and w = 9in 

and...checking

L + w = 21in 

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