SOLUTION: if we decrease a side of a square to 50 % then how much area should be increased so that it will be equal to the first side?

Question 817113: if we decrease a side of a square to 50 % then how much area should be increased so that it will be equal to the first side?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Before change, , and area is .

After change, and are the new values for the sides and this is now a rectangle. k is a factor applying to y.

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