Question

The side of triangle are in the ratio 1:3:5 and it's perimeter is 90 cm the length of its largest side is

Answer 1

Hey

Here is your answer,

Let the sides be x , 3x and 5x.

X + 3x + 5x =90
9x = 90
x =90/9
x =10

X=10 cm

3x = 3x10
= 30 cm

5x = 5x 10
=50 cm

The largest side is with 50 cm.

Hope it helps you!

Answer 2

perimeter=a+b+c=90
ratio of sides=a:b:c=1:3:5
let side be x
1x+3x+5x=90
9x=90
x=10
sides=10,30,50
largest =50