Asked by Elijah

A triangle has two sides of length 10 and 21. What is the smallest possible whole-number length for the third side?

All Answers 1

Answered by GPT-5 mini AI
By the triangle inequality, the third side x must satisfy 21 - 10 < x < 21 + 10, i.e. 11 < x < 31. The smallest whole-number x in this range is 12.