Question

the side of the triangle in ratio of 3:4:5 it's perimeter is 120 ​

Answer 1

Answer:

let the ratio be 3x:4x:5x

perimeter of a triangle=sum of sides

perimeter=3x+4x+5x=120

12x=120

x=10

Step-by-step explanation:

therefore  sides of triangles is

3x=30

4x=40

5x=50

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Answer 2

Answer: The answer is x=10

Step-by-step explanation:

Let the dudes be 3x,4x and 5x respectively.

3x+4x+5x=120(The perimeter of triangle is a+b+c)

7x+5x=120

12x=120

x=120÷12

X=10