Instructional Video4:13
Curated Video

GCSE Secondary Maths Age 13-17 - Geometry & Measures: Angles of regular shapes - Explained

9th - 12th
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...
Instructional Video11:01
Cerebellum

Geometry - Definitions

9th - 12th
Understand and making sense of geometry: Triangles, and their angles. This is part 1 from the series 'Geometry Program'.
Instructional Video0:51
Brian McLogan

What is an isosceles triangle

12th - Higher Ed
👉 Learn the essential definitions of triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of their angles or on the basis of their side lengths. The classification of triangles on the bases of their...
Instructional Video1:53
Brian McLogan

how to find the measure of x using an isosceles triangle

12th - Higher Ed
👉 Learn how to find the missing side of a triangle. A triangle is a polygon with three sides. Triangles are classified on the basis of the angles or on the basis of the sides. The classification of a triangle on the basis of the sides...
Instructional Video6:16
Curated Video

GCSE Secondary Maths Age 13-17 - Geometry & Measures: Isosceles Triangle - Explained

9th - 12th
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...
Instructional Video3:53
Curated Video

Understanding Isosceles Triangle Properties

9th - 12th
This video explains the properties of an isosceles triangle and helps viewers answer a standardized math test question about it. The teacher breaks down each answer choice and shows how to arrive at the correct answer.
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 Video13:50
ProTeachersVideo

KS2 Maths for Pupils: The Shape Show

Higher Ed
This programme introduces the properties of two-dimensional three and four sided shapes and is split into three sections: In the case of the disappearing shapes an animated sequence takes a look at how the world would be without four...
Instructional Video8:36
Let's Tute

Types of Triangles Based on angles and sides - Geometry

9th - Higher Ed
In this online video we will learn Types of Triangles based on angles and sides.
Instructional Video10:03
Cerebellum

Geometry - Proofs continued

9th - 12th
Understand and making sense of geometry: Proofs continued. This is part 3 from the series 'Geometry Program'.
Instructional Video3:50
Curated Video

Comparing and Analyzing Triangles by their Sides

K - 5th
In this lesson, the teacher explains how to compare and analyze triangles by their sides. The lesson covers different types of triangles, including equilateral, isosceles, and scaling triangles, and how to identify them based on their...
Instructional Video5:58
Curated OER

What is a Triangle?

1st - 5th
Triangles, triangles, triangles. What makes a polygon a triangle? How many types of triangles are there? How do you determine what kind of triangle it is? Watch this video as the teacher explains 'tri' meaning three, making a triangle -...
Instructional Video7:15
Curated OER

How Do You Classify Triangles?

5th - 10th
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: isosceles, equilateral, scalene, obtuse, and acute. Watch this video to learn about...
Instructional Video
Virtual Nerd

Virtual Nerd: What Is a Triangle?

9th - 10th Standards
This tutorial explains triangles and their different types. [5:58]
Instructional Video
Virtual Nerd

Virtual Nerd: How Do You Classify Triangles?

9th - 10th Standards
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. Use this tutorial to practice classifying triangles. [7:15]
Instructional Video
Virtual Nerd

Virtual Nerd: How Do You Classify Triangles?

3rd - 5th Standards
This tutorial provides practice in classifying triangles which is useful when figuring out how to solve for various sides and angles. [7:15]
Instructional Video
Math Antics

Math Antics: Triangles

3rd - 8th Standards
Gain a basic understanding of triangles by watching easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [7:39]
Instructional Video
Khan Academy

Khan Academy: Classifying Triangles by Angles

3rd - 5th Standards
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!
Instructional Video
Sophia Learning

Sophia: Solve for an Angle of an Isosceles Triangle: Lesson 3

6th - 9th
Given the value of one angle in an isosceles triangle in this lesson, you'll be able to solve for the value of either one of the missing angles, as long as you know which two interior angles are congruent. It is 3 of 12 in the series...
Instructional Video
Sophia Learning

Sophia: Solve for an Angle of an Isosceles Triangle: Lesson 8

9th - 10th
Given the value of one angle in an isosceles triangle in this lesson, you'll be able to solve for the value of either one of the missing angles, as long as you know which two interior angles are congruent. It is 8 of 12 in the series...
Instructional Video
Sophia Learning

Sophia: Solve for an Angle of an Isosceles Triangle: Lesson 1

6th - 9th
Given the value of one angle in an isosceles triangle in this lesson, you'll be able to solve for the value of either one of the missing angles, as long as you know which two interior angles are congruent. It is 1 of 12 in the series...
Instructional Video
Sophia Learning

Sophia: Solve for an Angle of an Isosceles Triangle: Lesson 6

9th - 10th
Given the value of one angle in an isosceles triangle in this lesson, you'll be able to solve for the value of either one of the missing angles, as long as you know which two interior angles are congruent. It is 6 of 12 in the series...