Question

if the perimeter of the triangular field is 144 M and ratio of the side is 3 is to 4 is to 5 find the area of the of the field

Answer 1

864m2 of the area of the triangular field

Answer 2

let the ratio be 3x,4xand5x
the perimeter of triangle=a+b+c
so,114m=3x+4x+5x
114=12x
114/12=x
9.5=x
so,the value of a,b and is
a=3x=3×9.5=28.5
b=4x=4×9.5=38
c=5x=5×9.5=47.5
the area of triangle by heron formula
$\sqrt{s(s - a)(s - b)(s - c)}$
so,first find the half perimeter of triangle=