Question

A triangle has two sides of length 2 and 18. What is the largest possible whole-number length for the third side?

Answer 1

19

Explanation:

Given 2 sides of a triangle then the third side x is

difference of 2 sides < x < sum of 2 sides , that is

18 - 2 < x < 18 + 2

16 < x < 20

Then the largest possible length of the third side is 19