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The sides of a triangle are in the ratio of 3 : 5 : 7 and its perimeter is 300 cm. Find Its area ? |
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Answer» so, 3x + 5x + 7x = 300 X = 300/15 X = 20 so the sides are 3x = 60, 5x = 100 7x = 140 so area can be easily FOUND by herons formulae. |
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