Question

The length of the sides of a triangle are in the ratio 3:4:5 and its perimeter is 144cm.Find the area of the triangle and its hight corresponding to the lowest side
Plz show along with figure.

Answer 1

Given the perimeter of a triangle is 160m and the sides are in a ratio of  3 : 4 : 5

Let the sides a, b, c of a triangle be 3x, 4x, 5x respectively

So, the perimeter = 2s = a + b + c

144 = a + b + c

144 = 3x+ 4x+ 5x

Therefore, x = 12cm

So, the respective sides are

a = 36cm

b = 48cm

c = 60cm

find using above