Question

the perimeter of a triangle is 135cm and its sides are in the ratio 25:17:12. find its area​

Answer 1

Answer:

perimeter of triangle= sum of all sides. let the sides be x. so, perimeter=25x+17x+12x.135=54x.x=135/54=2.5so, x=2.5.25x=25*2.5=62.5.17x=17*2.5=42.5.12x=12*2.5=30.