This tutorial provides practice in classifying triangles which is useful when figuring out how to solve for various sides and angles. [7:15]

In this video tutorial, students will determine if a polygon is regular by examining the sides and angles for congruency. Check understanding by the assessment. [2:06]

This video tutorial demonstrates how to use the terms equiangular and equilateral to determine if a polygon is regular or irregular. Check understanding with the assessment. [6:07]

This video tutorial explores finding the formula for the area of an equilateral triangle with side length of s.

You say you can't categorize a triangle because you don't know the length of the sides. Guess what? If you know the size of the angles you can!

This lesson will prepare you to distinguish an equilateral triangle based on the sides of a triangle. It is 5 of 8 in the series titled "Equilateral Triangles."

This lesson will prepare you to distinguish an equilateral triangle based on the sides of a triangle.

This lesson will prepare you to distinguish an equilateral triangle based on the sides of a triangle.