Question

The sides of the triangle are in ratio 5:12:13 and its perimeter is 150. find area of the triangle

Answer 1

let one side =5x
let second side =12x
let third side =13x
5x+12x+13x=150
30x=150
x=150÷30
x=5
one side =25
second side =60
third side =65

Answer 2

Let the all ratio's be x.
then, 5 = 5x.
12 = 12x.
13 = 13x.
Perimeter Of Triangle = Sum Of 3 Sides.
150 = 12x + 13x + 5x.
150 = 30x
150/30 = x.
5 = x.
5x = 5*5 = 25. => First Side.
12x = 12*5 = 60. => Second Side.
13x = 13*5 = 65. => Third Side.