SOLUTION: Side of square increase by 10%. Area of it increase by....% .

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Question 1014291: Side of square increase by 10%. Area of it increase by....%
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Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
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1.1 * 1.1 = 1.21.

%281.21-1%29%2F1%29 = 0.21 = 21%.