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When each side of a square was reduced by 2 metres, the area became 49 square metres. What was the length of a side of the original square? |
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Answer» Let the length of each side of the original square be x, then (x - 2)2 = 49 x - 2 = \(\pm\) 7 x - 2 = 7 x - 2 = -7 x = 7 + 2 = 9 x = -7 + 2 = -5 The length of each side of the original square = 9 cm |
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