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.

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.

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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) (Show Source): You can put this solution on YOUR website!
sqrt(144)=12 side of new square
12-7=5 side of first square
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