the sides of a triangular plot are in the ratio of 3:5:7and its perimeter is 300m. find its area.
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let the angles are 3x , 5x and 7x
sum of all angles of triangle are 180 .
so , 3x +5x +7x= 180
15x = 180
x = 12
so the angles are 36 , 60 and 84
sum of all angles of triangle are 180 .
so , 3x +5x +7x= 180
15x = 180
x = 12
so the angles are 36 , 60 and 84
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