Question

The perimeter of a triangle is 300cm. The sides are in the ratio 5:12:13. Find the area of the triangle?

Answer 1

ratio of the sides 5:12:13
let the sides of the triangle be 5x,12x,13x

perimeter =300 cm

5x+12x+13x=300

30x =300

x= 300/30

x = 10 cm

sides of triangles are 5x,12x,13x
5*10, 12*10,13*10

50cm, 120cm, 130 cm

Answer 2

Let the sides be 5x, 12x and 13x
=>5x+12x+13x = 300
=>30x=300
=>x=300/30
=>x=10
therefore,5x    =05*10=50 cm
               12x  =12*10=120 cm
               13x  =13*10=130 cm