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The numerical value of the perimeter of a square exceeds that of its area by 4. what is the side of the square ?A. 1 unitB. 2 unitC. 3 unitD. 4 unit |
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Answer» Correct Answer - B Let the side of the square `= x` units Area of square `=x^(2)` units and perimeter of square `=4x` unit According to question, `x^(2)+4=4x` `implies x^(2)-4x+4=0` `implies (x-2)^(2)=0` `implies x=2` `:.` Side of square `=2` unit |
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