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10 November, 10:43

The area of a square is 21 more than its perimeter. find the length of a side.

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  1. 10 November, 12:00
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    The formula for area of a square is s^2 so it would be 7; the perimeter would be 7+7+7+7 = 28 and the area would be 7^2 = 49
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