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The diagonal of a square is 10cm. find its area. |
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Answer» side = x 10 = x√2 x = 10/√2 by rationalising 10/√2 ×√2/√2 = 10√2/2 = 5√2 side = 5√2 cm area = side ×side = 5√2×5√2 = 25×2 = 50cm^2. |
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