Question

The perimeter of a triangle is 81cm and the length of the sides are in ratio of 2:3:4. find the length of 3 sides​

Answer 1

Answer:

18,27,36

Step-by-step explanation:

given sum of three sides = 81cm

let the sides be 2x,3x,4x

so 2x+3x+4x= 81

9x=81

x=9

so 2x=18

3x=27

4x=36

Answer 2

Solution:-

Given:-

Ratio of 3 sides = 2:3:4

Perimeter = 81 cm

To Find:-

Length of the 3 sides.

Assumption:-

Let the common side be x

By The Problem:-

2x + 3x + 4x = 81

or, 9x  = 81

or, x = 81÷9

or, x = 9

Answer:-

Length of 1st side = 2x = 2×9=18 cm.

Length of 2nd side = 3x = 3×9=27 cm.

Length of 3rd side = 4x = 4×9=36 cm.

Hope it will help you.