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7.The perimeter of a triangular field is 840cm and its sides are in the ratio 6:7:8.Find the area of the fiel

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Step-by-step explanation:

Given, perimeter of a triangular FIELD is 420 m and its sides are in the ratio 6:7:8. LET sides of a triangular field be a = 6X, b = 7x and c = 8x. ⇒ X = 420/21 = 20 m



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