Instructional Video0:49
Brian McLogan

Learn how to classify a triangle by it's sides ex 8

12th - Higher Ed
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
Instructional Video8:55
Brian McLogan

How Classifying Triangles Helps Solve Problems | Part 1

12th - Higher Ed
I think we all learn how to classify triangles, but why do we learn it and how is it helpful for us to solve math problems?
Instructional Video3:01
Curated Video

Angle Properties in Triangles

K - 12th
Identifying special types of triangles based on the angle properties such as right triangles, obtuse triangles, and acute triangles.
Instructional Video4:35
Curated Video

Classifying Triangles using the Pythagorean Theorem

K - 5th
Learn about the characteristics of right, acute, and obtuse triangles. This video demonstrates how to determine if a triangle is right using the theorem and highlights common mistakes students make.
Instructional Video11:32
Curated Video

Converse of the Pythagorean Theorem and Triangle Inequality Theorem

9th - 12th
In this video, the teacher explains how to use the triangle inequality theorem to determine if three side measurements can form a triangle. They also teach how to use the converse of the Pythagorean theorem to determine if a triangle is...
Instructional Video1:55
NUMBEROCK

Triangles

K - 5th
Skateboards, mountain climbing, billiards' Don't you just love this stuff? That's why NUMBEROCK put it all into this song about triangles that is filled with real-world connections. Triangles are all around us, so it is easy to make this...
Instructional Video3:36
Curated Video

Classifying Triangles Based On Angle Properties

K - 12th
Classifying triangles based on angle properties.
Instructional Video4:24
Curated OER

What are Acute, Obtuse, and Right Triangles?

5th - 8th
Triangles are classified by their angle measurement as well as by the length of their sides. Here are some names that identify the types of triangles: right, isosceles, equilateral, scalene, obtuse, and acute. Watch this video to learn...
Instructional Video
Sophia Learning

Sophia: Classifying Triangles

6th - 8th
In this video tutorial, students learn how to classify triangles based on the angles. Topics include right, obtuse, and acute triangles. A short assessment is included to follow the lesson. [4:40]
Instructional Video
Art of Problem Solving

Art of Problem Solving: Area of an Obtuse Triangle

9th - 10th Standards
Video tutorial uses examples to reinforce understanding of how to find the area of an obtuse triangle. [6:44]
Instructional Video
Sophia Learning

Sophia: Triangle Height: Lesson 3

9th - 10th
This lesson will demonstrate how to locate the height in an obtuse, right, and acute triangle. It is 3 of 5 in the series titled "Triangle Height."