Question

find the area of a triangle whose sides are in ratio 5:12:13 and its perimeter is 60 cm

Answer 1

let the sides of the triangle be 5x 12x and 13x.
perimeter=60 cm
perimeter= sum of all sides.
60 cm= 5x + 12x + 13x
60 cm= 30x
60/30=x
2= x

5x= 5×2=10
12x=12×2=24
13x = 13×2=26

hope it helps u in any way.