SOLUTION: If the sides of a square are lengthened by 7cm, the area becomes 144cm^2. Find the length of a side of the original square.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: If the sides of a square are lengthened by 7cm, the area becomes 144cm^2. Find the length of a side of the original square.      Log On


   

Question 276972: If the sides of a square are lengthened by 7cm, the area becomes 144cm^2. Find the length of a side of the original square.
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt(144)=12 side of new square
12-7=5 side of first square