Question

Side of a triangle proprtionof 4:5:6and perimeter is195.find its area

Answer 1

let sides of the triangle be 4x, 5x, 6x. 195 = 4x + 5x + 6x
195 = 15x
195/15 = x
13 = x
4x = 4×15 = 60
5x = 5×15 = 75
6x = 6×15 = 90