How Do You Determine Whether a Triangle Can Be Formed Given Three Side Lengths?

How Do You Determine Whether a Triangle Can Be Formed Given Three Side Lengths?

Note:

If you're given 3 side measurements, there's a quick way to determine if those three sides can form a triangle. Follow along with this tutorial and learn what relationship these sides need in order to form a triangle.

Keywords:

problem

triangle

side lengths

valid triangle

triangle inequality

Background Tutorials

Interpret statements of inequality as statements about the relative position of two numbers on a number line diagram.

Inequalities come up all the time when you're working algebra problems. In this tutorial you'll learn what an inequality is, and you'll see all the common inequality symbols that you're likely to see :)