Instructional Video4:54
Curated Video

Congruent Angles formed by Parallel Lines & a Transversal | 8.G.A.5

9th - 12th
In this math video we will learn about congruent angles formed by parallel lines & a transversal. We will review the definitions of vertical angles, alternate interior angles and alternate exterior angles. We will also apply these...
Instructional Video2:45
Brian McLogan

What are proportional and congruent parts of parallel lines

12th - Higher Ed
👉 Learn how to solve for an unknown measure using parallel sides. When two parallel lines are cut by a transversal, there are some congruents angles that are formed. Some of the congruents angles formed include the corresponding angle,...
Instructional Video7:37
Brian McLogan

Writing a Proof to Prove Congruent Triangles Using AAS - Congruent Triangles

12th - Higher Ed
👉 Learn how to prove that two triangles are congruent. Two or more triangles are said to be congruent if they have the same shape and size. There are many postulates and theorems to determine whether two triangles are congruent. They...
Instructional Video4:37
Brian McLogan

Using AAS to Prove Two Triangles are Congruent - Congruent Triangles

12th - Higher Ed
👉 Learn how to prove that two triangles are congruent. Two or more triangles are said to be congruent if they have the same shape and size. There are many postulates and theorems to determine whether two triangles are congruent. They...
Instructional Video5:18
Brian McLogan

Learning to Write a Proof for ASA of Two Triangles - Congruent Triangles

12th - Higher Ed
👉 Learn how to prove that two triangles are congruent. Two or more triangles are said to be congruent if they have the same shape and size. There are many postulates and theorems to determine whether two triangles are congruent. They...
Instructional Video4:24
Brian McLogan

Determine Corresponding Parts as Well as an Concurrency Statement - Congruent Triangles

12th - Higher Ed
👉 Learn how to find the corresponding pairs of congruent triangles. Two or more triangles are said to be congruent if they have the same shape and size. To determine the corresponding congruent parts of a triangle, we use the congruent...
Instructional Video2:52
Curated Video

Angle Relationships and Transversals

K - 5th
In this video, students learn about angle relationships by examining transversals. The teacher explains the concepts of parallel lines, transversals, and different types of angles formed between them. Students also learn about the...
Instructional Video1:07
Brian McLogan

What are congruent parts of parallel lines

12th - Higher Ed
👉 Learn how to solve for an unknown measure using parallel sides. When two parallel lines are cut by a transversal, there are some congruents angles that are formed. Some of the congruents angles formed include the corresponding angle,...
Instructional Video2:07
Brian McLogan

How to use the congruence of parallel lines to determine the missing value

12th - Higher Ed
👉 Learn how to solve for an unknown measure using parallel sides. When two parallel lines are cut by a transversal, there are some congruents angles that are formed. Some of the congruents angles formed include the corresponding angle,...
Instructional Video3:30
Curated Video

Finding Angle Measurements Using Corresponding Angles

K - 5th
In this video, students will learn how to find the measurements of angles created when parallel lines are cut by a transversal by using corresponding angles. The video explains the concept of corresponding angles in similar figures and...
Instructional Video5:23
Brian McLogan

Using a Two Column Proof to Prove Two Sides of a Triangle are Equal

12th - Higher Ed
👉 Learn how to prove that two triangles are congruent. Two or more triangles are said to be congruent if they have the same shape and size. There are many postulates and theorems to determine whether two triangles are congruent. They...
Instructional Video8:00
Brian McLogan

Proving Parallel Lines with Angle Relationships

12th - Higher Ed
👉 Learn about converse theorems of parallel lines and a transversal. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry, parallel lines are...
Instructional Video6:52
Brian McLogan

How To Write a Proof for Parallel Lines

12th - Higher Ed
👉 Learn how to write a proof when given angles from parallel lines and a transversalWe will explore angle relationships with parallel lines and a transversal. Parallel lines are two lines on a plane that will never intersect and a...
Instructional Video5:13
Curated Video

Understanding Dilations and Similar Triangles

K - 5th
In this video, the teacher explains how to determine if two triangles are similar under dilation. They review the properties of dilation and similar figures, such as proportional corresponding sides and congruent corresponding angles.
Instructional Video1:46
Brian McLogan

Identify the Relationship Between Two Angles in a Box

12th - Higher Ed
👉 Learn how to identify angles from a figure. This video explains how to solve problems using angle relationships between parallel lines and transversal. We'll determine the solution given, corresponding, alternate interior and exterior....
Instructional Video5:59
Brian McLogan

How To Write a Proof - Proving Parallel Lines

12th - Higher Ed
👉 Learn how to write a proof when given angles from parallel lines and a transversalWe will explore angle relationships with parallel lines and a transversal. Parallel lines are two lines on a plane that will never intersect and a...
Instructional Video3:47
Brian McLogan

Writing a Proof for Parallel Lines

12th - Higher Ed
👉 Learn how to write a proof when given angles from parallel lines and a transversalWe will explore angle relationships with parallel lines and a transversal. Parallel lines are two lines on a plane that will never intersect and a...
Instructional Video7:25
Curated Video

Proving Angle Relationships in Triangles

K - 5th
Learn how to find the measure of angle A in a triangle when angle B is given as 40 degrees. This lesson covers the concepts of congruent angles, parallel lines, and side-angle-side congruence. Watch a demonstration of how to prove the...
Instructional Video3:29
Curated Video

Understanding Triangle Angles: Exploring Properties and Solving Problems

K - 5th
In this video lesson, students learn about the properties of triangle angles. They discover that the sum of the three angles in a triangle always adds up to 180 degrees, regardless of the type of angles involved. The lesson also...
Instructional Video4:19
Curated Video

Finding Angle Measurements using Vertical and Adjacent Angles

K - 5th
Learn how to find angle measurements when parallel lines are cut by a transversal. The concept of vertical angles, adjacent angles, and supplementary angles are introduced and used to find the value of unknown angles. The lesson provides...
Instructional Video5:06
Curated Video

Finding Missing Sides in Triangles with Parallel Lines

K - 5th
In this video, the teacher explains how to find a missing side of a triangle when it is split by a parallel line. They demonstrate the concept by drawing parallel lines and a transversal, creating corresponding angles.
Instructional Video3:41
Curated Video

Finding Angle Measurements Using Alternate Interior and Exterior Angles

K - 5th
This video explains how to find the measurements of angles created when parallel lines are cut by a transversal using alternate interior angles and alternate exterior angles. It covers concepts such as vertical angles, adjacent angles,...
Instructional Video1:49
Brian McLogan

What are porportional parts of parallel lines

12th - Higher Ed
👉 Learn how to solve for an unknown measure using parallel sides. When two parallel lines are cut by a transversal, there are some congruents angles that are formed. Some of the congruents angles formed include the corresponding angle,...
Instructional Video8:01
Brian McLogan

Writing a proof for equiangular angles within each other

12th - Higher Ed
👉 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...