Question

The extended ratio of the sides of a triangle is 3:5:9 and the perimeter is 119. what is the length of the longest side of the triangle?

Answer 1

63

Explanation:

The sides are related by the ratio 3, 5, 9

`3x+5x+9x=119`

`17x=119`

`x=7`

so the longest side is:

`9x= 9*7 = 63`