Instructional Video7:29
Curated Video

Review for You: Classifying Lines, Angles, and Triangles

K - 8th
Mr. Addit reviews points, lines, angles, and triangles and how to classify them.
Instructional Video7:15
Curated Video

Review for You: The Wonderful World of Geometry

3rd - Higher Ed
Mr. Addit reviews geometry fundamentals including: points, lines, line segments, rays, perpendicular and parallel lines, acute, obtuse, and right angles, and isosceles, scalene, and equilateral triangles. He also reviews polygons...
Instructional Video4:55
Curated Video

Let's Talk about Triangles

3rd - Higher Ed
β€œLet’s Talk about Triangles” describes the main types of triangles and explains what makes each type unique.
Instructional Video4:19
Curated Video

Classifying Triangles

3rd - Higher Ed
Classifying Triangles explores the six types of triangles by defining the triangle types and classifying triangles by side length and angle measurement.
Instructional Video7:40
Zach Star

What are the odds that 3 'random' points on a sphere will form an acute triangle?

12th - Higher Ed
What are the odds that 3 'random' points on a sphere will form an acute triangle?
Instructional Video4:45
Curated Video

Classify Triangles by Angle Type

K - 5th
Understand the different types of angles of triangles, such as right angles, obtuse angles, and acute angles. We then demonstrate how to identify and sort triangles into these categories.
Instructional Video6:29
Brian McLogan

How to classify polygons by the measure of their angles

12th - Higher Ed
πŸ‘‰ Learn all about classifying triangles. A triangle is a closed figure with three sides. A triangle can be classified based on the length of the sides or based on the measure of the angles. To classify a triangle based on the length of...
Instructional Video1:05
Brian McLogan

What is an acute triangle

12th - Higher Ed
πŸ‘‰ 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 Video6:53
Brian McLogan

Writing a proof for an acute triangle

12th - Higher Ed
πŸ‘‰ Learn how to write a proof given a triangle. A triangle is a polygon with three sides. A proof is a series of statements and reasons that establishes the truth of a mathematical claim(statement). To write a proof given a triangle, we...
Instructional Video3:47
Brian McLogan

Based on the angles of a triangle learn how to classify the triangle ex

12th - Higher Ed
πŸ‘‰ 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 Video1:12
Brian McLogan

How does the pythagorean inequality theorem prove obtuse triangles

12th - Higher Ed
Learn about the Pythagorean theorem. The Pythagoras theorem is a fundamental relation among the three sides of a right triangle. It is used to determine the missing length of a right triangle. The Pythagoras theorem states that the...
Instructional Video0:55
Brian McLogan

Learn how to classify a triangle based on the number of sides ex 1

12th - Higher Ed
πŸ‘‰ 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 Video8:44
Brian McLogan

Classify a Triangle Given Coordinate Points | Part 2

12th - Higher Ed
When given three points how can you classify the triangle? In this video I will show you how to use the distance formula and slope formula to classify the triangle.
Instructional Video1:22
Brian McLogan

How do you label a oblique triangle

12th - Higher Ed
πŸ‘‰ Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...
Instructional Video6:24
Brian McLogan

Sketch a triangle given a trig angle then determine remaining trig functions of angle

12th - Higher Ed
πŸ‘‰ Learn how to evaluate the six trigonometric functions given the value of one of the trigonometric functions. When given the value of one of the trigonometric functions of an angle, we can evaluate the values of the other trigonometric...
Instructional Video0:50
Brian McLogan

Given the angles of a triangle learn how to classify the triangle ex 3

12th - Higher Ed
πŸ‘‰ 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 Video59:58
Brian McLogan

What are the Law of Sines?

12th - Higher Ed
What are the law of sines and how to do we use them to solve the missing measures of right triangles. In this lesson we will explore where the law of sines comes from, and how to apply it to word problems as well as regular oblique...
Instructional Video1:13
Brian McLogan

How does the pythagorean inequality theorem prove acute triangles

12th - Higher Ed
Learn about the Pythagorean theorem. The Pythagoras theorem is a fundamental relation among the three sides of a right triangle. It is used to determine the missing length of a right triangle. The Pythagoras theorem states that the...
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

3rd - 5th
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 Video15:20
Brian McLogan

How to Solve the ambiguous case

12th - Higher Ed
πŸ‘‰ Learn how to determine if a given SSA triangle has 1, 2 or no possible triangles. Given two adjacent side lengths and an angle opposite one of them (SSA or ASS), then there are 3 possible cases: there can be 1 solution, 2 solutions,...
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...