Question

Sides of a triangle are in the ratio of 12:17:25 and it's perimeter is 540. Find its area

Answer 1

Let ratio be x
14x +17x +25x=54x
X=540/54=10
12×10=120
17×10=170
25×10=250

Answer 2

Let the sides of the triangle be 12x, 17x and 25x

sum of all sides = perimeter

12x+17x+25x=540

54x = 540

x = 540 \ 54

x = 10

the side of the triangle will be 12x = 12 * 10 = 120

17x = 17 * 10 = 170

25x = 25 * 10 = 250

then you can find the area by herons formula