Question

The sides of a triangle are in the ratio 5:6:7 and its perimeter is 72 cm.Find the area of the triangle​

Answer 1

let the sides be 5x,6x and 7x

so,

5x+6x+7x=72

18x=72

x=4

Sides are 20,24,28 cm

Then we can find the area using Heron's Formula as shown in the above given picture.