Question 1099264
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The side of a square is equal of the longer side of a rectangle. The shorter side of the rectangle is 2 cm and the longer side is 50% longer than the short one. 
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That means the given square is dimensions 3 and 3; and given rectangle is dimensions 3 and 2.


Let the amount of increase be x, for the change to side length of the square.
{{{(3+x)(3+x)=81}}}

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