Question

The sides of a triangle are in the ratio3:4:5. If its perimeter is 36 cm

Answer 1

Answer:

the sides of the triangle are 9cm, 12 cm, and 15 cm respectively.

Step-by-step explanation:

sides of the triangle are in the ratio 3:4:5

let x be common, there fore the sides are 3x, 4x and 5x.

perimeter=36 cm

perimeter = sum of all sides.

therefore,

36=3 x+4x+5x

36=12x

x=36/12

this implies, x=3

therefore the three sides of the triangle are,

3x=3*3=9 cm

4x=4*3=12 cm

5x=5*3=15 cm

Answer 2

Perimeter = 36 cm
Sides are 3x , 4x , 5x

Acc.to que :

3x+4x+5x = 36 cm
12x = 36 cm
x = 3

So sides are 9 cm , 12 cm , 15 cm. ( ANS )


Pls mark as brainiest answer.