The sides of a triangular plot are in the ratio 3 ratio 5 ratio 7 and its perimeter is 180 cm find its area
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Step-by-step explanation:
let the one side of triangle be 3x
then the second side of triangle 5x
and the third side of the triangle 7x
according to question
3x+5x+7x=180
15x =180
x=180/15
x=12
one side =3×12
=36
second side=5×12
=60
third side =7×12
=84
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