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MATHEMATICS if the diagonal of a square is 12cm, calculate the area and the perimeter of the square. 72cm​
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MATHEMATICS if the diagonal of a square is 12cm, calculate the area and the perimeter of the square. 72cm​

User Dan Oberlam
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Answer:


diagonal \: of \: square = a √(2) \\ 12 = a √(2) \\ (12)/( √(2) ) = a \\ \: a = 6 √(2) \\ now \: area \: of \: square = {l}^(2) \\ = (6 \sqrt{2) {}^(2) } \\ = 72cm {}^(2) \\ again \: perimeter \: of \: square = 4l \\ = 4 * (6 √(2) ) \\ = 33.94cm

User Greg Ferreri
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