What are Equilateral, Isosceles, and Scalene Triangles?

What are Equilateral, Isosceles, and Scalene Triangles?

Note:

Did you know that there are different kinds of triangles? Knowing how to identify these triangles is an important part of solving many problems involving these triangles. Check out this tutorial and learn about some of the different kinds of triangles!

Keywords:

  • definition
  • triangle
  • triangles
  • equilateral
  • equilateral triangle
  • isosceles
  • isosceles triangle
  • scalene
  • scalene triangle
  • congruent sides
  • congruent angles
  • equal sides
  • equal angles
  • side
  • sides
  • side lengths
  • 180
  • 180 degrees
  • add to 180

Background Tutorials

  • Triangle Definitions

      • What is a Triangle?What is a Triangle?

      What is a Triangle?

      You can't learn everything about math without dealing with triangles. Did you know that there are different types of triangles? Check out this tutorial, and learn about triangles and their different types!

Further Exploration

  • Triangle Definitions

      • How Do You Classify Triangles?How Do You Classify Triangles?

      How Do You Classify Triangles?

      Being able to classify triangles is an important skill. If you know what kind of triangle you're looking at, it's much easier to figure out how to solve for various sides and angles. Practice classifying triangles with this tutorial!

  • Finding Angles in Triangles

      • How Do You Find Missing Angles in an Isosceles Triangle?How Do You Find Missing Angles in an Isosceles Triangle?

      How Do You Find Missing Angles in an Isosceles Triangle?

      Trying to find a missing interior angle measurement in a triangle? See if you're working with a special type of triangle such as an equilateral or isosceles triangle. If you are, that knowledge can help you. In this tutorial, see how identifying your triangle first can be very helpful in solving for that missing measurement. Take a look!