Question

the side of triangle in the ratio 3:5:7 and it's perimeter is 300 m

Answer 1

let ratio be in x
so 3x,5x and 7x
side of triangle = total primeter
3x+5x+7x=300
15x=300
x=300÷15
x=20
3x=3×20=60
5x=5×20=100
7x=7×20=140

Answer 2

Hi!!!!!!!!!!!!! Here is solution

Let ratio be x

So,

Ist side = 3x

2nd side = 5x

3rd side = 7x

Perimeter = 3x + 5x + 7x

300           = 15x

300/15      = x

20             = x

Hence,

Ist side = 3x  = 3*20 = 60

2nd side = 5x  = 5*20 = 100

3rd side = 7x  = 7*20 = 140

Ans. 60,100,40

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