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What would be the area of parallelogram if it has sides 60 m and 40 m and one of its diagonals is 80 m long.

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posted Jun 26, 2015 by Kuldeep Apte

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1 Solution

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use A=sqrt(s*(s-a)*(s-b)*(s-c)) for area of a triangle which is 774.5966
hence area of parallelogram is 2*774.5966 or 1549.1933 sq m

solution Feb 1 by Kewal Panesar

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