Question

The sides of a triangular plot are in the ratio 3 ratio 5 ratio 7 and its perimeter is 180 cm find its area

Answer 1

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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