Question

the side of triangle are in the ratio 5:12:13, and its perimeter is150 m. find the area of the triangle.​

Answer 1

Step-by-step explanation:

let the sides be 5x , 12x , 13x.

perimeter=12x+5x+13x

perimeter is given as 150m.

So,

12x+5x+13x=150

30x=150

x=150/30

x=5

sides are, 12×5=60cm

5×5=25cm

13×5=65cm

By Heron's formula, p=60+25+65÷2=75

Area by Herons formula = 750cmsq.