Question

The side of a triangle are in the ratio 13 : 14 : 15 and its perimeter is 84cm. Find the area of the triangle​

Answer 1

Answer:

area = 390cm^2

Step-by-step explanation:

let the sides be 13x,14x,15x

perimeter of a triangle = a+b+c

84 = 13x+14x+15x

42x = 84

x = 84/42

x = 2

The sides are 26cm,28cm,30cm

area of triangle = 1/2 * b*h

area = 1/2 * 26 * 30

area = 390cm^2