Curated Video
Identifying Line Symmetry in Regular Polygons
In this video, the teacher explains how to determine the number of lines of symmetry in regular polygons. They discuss the three options for line symmetry: horizontal, vertical, and diagonal. Using examples of an equilateral triangle,...
Let's Tute
Understanding Triangles: Types and Properties
This video explains the basic concepts of triangles, including the relationship between angles and sides, the properties of equilateral, isosceles, and scalene triangles, and the special case of right-angled triangles.
Brian McLogan
How Classifying Triangles Helps Solve Problems | Part 1
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?
Let's Tute
Inequalities of a Triangle
In this video we will learn about Inequalities of a Triangle. We will cover Introduction, 3 theorems and solve some questions.
Brian McLogan
What is the Triangle Inequality Theorem - Congruent Triangles
👉 Learn about congruent triangles theorems. Two or more triangles are said to be congruent if they have the same shape and size. There are many methods to determine whether two triangles are congruent. Some of the methods include: (1)...
Curated Video
Congruent Figures
In this video lesson you will learn about congruent figures. We will learn the definition of congruent figures. Students will learn how to identify corresponding sides and corresponding angles to determine if figures are congruent....
Let's Tute
Types of Triangles Based on angles and sides - Geometry
In this online video we will learn Types of Triangles based on angles and sides.
Brian McLogan
What is the unit circle and how do you find points on the unit circle
👉 Learn about the points on the unit circle. A unit circle is a circle which radius is 1 and is centered at the origin in the cartesian coordinate system. To construct the unit circle we take note of the points where the unit circle...
Curated Video
Drawing Triangles Using Given Angles
In this video, students learn how to draw triangles when given the angles. The teacher explains the concept of the sum of angles in a triangle always being 180 degrees and demonstrates how to use a protractor to draw the angles accurately.
Professor Dave Explains
Types of Triangles in Euclidean Geometry
If a shape is made of straight line segments, the minimum number of sides it can have is three. And three sides make a triangle! I'm sure you knew that. But do you know all the types of triangles? Oh you do? Then what's a scalene...
Curated Video
Finding Trigonometric Coordinates on the Unit Circle Using Special Right Triangles
In this video, students are taught how to find the trigonometric coordinates for angles of 30 and 60 degrees on the unit circle using special right triangles. The lesson explains the concept of the unit circle, equilateral triangles, and...
Cerebellum
Introducting Geometry
This video covers exam strategy, Geometry. This is part 13 from the series 'Introduction to the Math Section of the SAT'.
Curated Video
Using Equations to Find Missing Angles
In this video, the teacher explains how equations can help us find missing angles in real-world situations, using the example of floor tiles. By examining the patterns and shapes, the teacher demonstrates how to determine the measure of...
Curated OER
What are Equilateral, Isosceles, and Scalene Triangles?
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...
Curated OER
What is a Regular Polygon?
What makes a polygon a regular polygon? Does this mean there are irregular polygons? For a polygon to be classified as a regular polygon, all the sides must be congruent and all the angles must be congruent. Those are the two rules that...
Curated OER
What is a 30¡-60¡-90¡ Triangle?
Is it possible to take an equilateral triangle and cut it in half to make a 30-60-90 special triangle to make it easier to solve a problem? Why yes, of course! It's even possible to find the missing length without using the Pythagorean...
Massachusetts Institute of Technology
Mit: Blossoms: Arabesque: Where Art Meets Mathematics
Through a video lecture, students discover the visual side of the important applications of mathematics in practical life. More specifically, they will understand the relationship of mathematics and decoration or art.
Sophia Learning
Sophia: Equilateral Triangle Interior Angles Practice Problems: Lesson 1
This lesson will provide practice problems that involve solving for unknown angle and side measures of equilateral triangles. It is 1 of 5 in the series titled "Equilateral Triangle Interior Angles Practice Problems."
Khan Academy
Khan Academy: Geometry: Problem Involving Angle Derived From Square and Circle
Demonstrates how to solve a challenging geometry problem about finding the measure of an angle that is formed by different segments in a square which intersect with part of a circle. Solution depends on creating triangles in the diagram...
Khan Academy
Khan Academy: Geometry: Equilateral Triangle Sides and Angles Congruent
In this video tutorial [6:29], the instructor models a proof so show that if the sides of an equilateral triangle are congruent, then all the angles are congruent and vice versa. The instructor uses the knowledge of congruent legs and...
Khan Academy
Khan Academy: Geometry: Common Orthocenter and Centroid
Proves that if the orthocenter and centroid are the same point in a triangle then the triangle is a right triangle. [6:25]
Khan Academy
Khan Academy: Geometry: Equilateral and Isosceles Example Problems
Demonstrates how to use the triangle sum theorem, properties of equilateral and isosceles triangles, and special angle pairs to determine the unknown measures of angles in three different diagrams. [6:27]
Sophia Learning
Sophia: Equilateral Triangles: Lesson 2
This lesson will prepare you to distinguish an equilateral triangle based on the sides of a triangle. It is 2 of 8 in the series titled "Equilateral Triangles."