SOLUTION: If the sides of a square are lengthened by 7cm, the area becomes 169cm^2. Find the length of a side of the original square.
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Question 315861: If the sides of a square are lengthened by 7cm, the area becomes 169cm^2. Find the length of a side of the original square. Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! let side be x
the increased side = x+7
Area = L^2
(x+7)^2= 169
Take square root of the equation
x+7=13
x=6 cm the side
