Item 9 A triangle has one side of length 5 and another of length 9. Which of the following are possible lengths of the third side?

Answer 1

Name the 3rd side x. Know that any 2 sides added must be greater than the 3rd side.

5+x > 9. which solved for x: x > 4

5+9 > x which solved for x: x < 14

x must be between 4 and 14

So 4 < X < 14