Sophia Learning
Sophia: Equilateral Triangle Interior Angles Practice Problems: Lesson 3
This lesson will provide practice problems that involve solving for unknown angle and side measures of equilateral triangles. It is 3 of 5 in the series titled "Equilateral Triangle Interior Angles Practice Problems."
Sophia Learning
Sophia: Equilateral Triangles: Lesson 5
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."
Sophia Learning
Sophia: Equilateral Triangles
This lesson will prepare you to distinguish an equilateral triangle based on the sides of a triangle.
Sophia Learning
Sophia: Equilateral Triangles
This lesson will prepare you to distinguish an equilateral triangle based on the sides of a triangle.
Sophia Learning
Sophia: Triangle Notation: Lesson 2
Following this lesson, you'll be able to name a triangle based on the three vertices and the triangle symbol. It is 2 of 6 in the series titled "Triangle Notation."
Shmoop University
Shmoop: Triangles
A video clip [2:09] using an everyday bag of chips to explain the different types of triangles.