Instructional Video3:31
Curated Video

Vertical Angles & Intersecting Lines | 7.G.B.5

9th - 12th
In this math video we will learn about vertical angles & intersecting lines. We will begin by understanding that vertical angles are formed by two intersecting lines. The angles that are opposite each other are vertical angles and...
Instructional Video9:33
Curated Video

Identifying and Using Adjacent and Vertical Angles

9th - 12th
In this video lesson, you will discover how to identify adjacent and vertical angles. We will also learn about the relationship between adjacent angles and how to find a missing adjacent angle. We will discuss the relationship...
Instructional Video5:55
Brian McLogan

Can vertical angles be complementary

12th - Higher Ed
👉 Learn how to define angle relationships. Knowledge of the relationships between angles can help in determining the value of a given angle. The various angle relationships include: vertical angles, adjacent angles, complementary angles,...
Instructional Video7:10
Brian McLogan

Master labeling vertical angles from a figure

12th - Higher Ed
Master labeling vertical angles from a figure
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 Video1:21
Curated Video

Find the Missing Angle

9th - 12th
In this short video we will answer a standardized math test question where we are asked to find the missing angle. We will be presented with three intersecting lines that form a triangle. We will be asked to find the missing angle. We...
Instructional Video11:33
Curated Video

Vertical, Complementary and Supplementary Angles

9th - 12th
In this math video we will identify and use facts about vertical, complementary & supplementary angles to solve problems. We will review the definition of an angle. We will draw an angle from two rays and a vertex. We will draw...
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 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 Video4:21
Brian McLogan

Writing a Proof for Congruent Triangles Using AAS

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 Video6:01
Brian McLogan

Use a Two Column Proof to Prove Congruence Using CPCTC - 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 Video4:07
Brian McLogan

Geometry - Proving Two Triangles are Congruent Using SAS

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 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 Video5:59
Curated Video

Using Angle Facts

9th - 12th
In this video, the teacher uses angle facts to solve math problems. The students are given a diagram with intersecting lines and angles, and they are asked to write algebraic equations to find the values of X and Y. The teacher walks...
Instructional Video4:08
Curated Video

Congruent Triangles & Their Angle Measures | 8.G.A.5

9th - 12th
In this math video we will learn about congruent triangles & their angle measures. We will review the definition of congruent figures which is that congruent figures have corresponding sides and corresponding angles that are congruent....
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 Video4:21
Brian McLogan

Using Two Congruent Triangles to Find the Value of X and Y

12th - Higher Ed
👉 Learn how to solve for unknown variables in congruent triangles. Two or more triangles are said to be congruent if they have the same shape and size. When one of the values of a pair of congruent sides or angles is unknown and the...
Instructional Video6:56
Curated Video

Classifying Angles - Vertical, Adjacent, Complementary, and Supplementary Angles | 7.G.B.5

9th - Higher Ed
Not all angles are what they seem! In this video, Mrs. C from Math Defined will show you how to classify angles as *vertical, adjacent, complementary, or supplementary**. Using clear examples, diagrams, and easy-to-remember tricks (like...
Instructional Video3:50
Curated Video

Proving Triangle Similarity with Algebraic Proof

K - 5th
In this video, the teacher explains how to prove that two triangles are similar using algebraic proofs. They review the vertical angle theorem and the double-angle postulate, which are used to establish congruence between angles. The...
Instructional Video5:40
Curated Video

Using Similarity Criteria to Find the Distance Across a Canyon

K - 5th
In this lesson, students learn how to solve real-world problems involving similarity criteria. Using the example of finding the distance across a canyon, they apply the vertical angle theorem and angle-angle similarity postulate to...
Instructional Video4:32
Brian McLogan

Given the number of sides of a regular polygon find the measure of each interior angle

12th - Higher Ed
👉 Learn how to determine the measure of the interior angles of a regular polygon. A polygon is a plane shape bounded by a finite chain of straight lines. A regular polygon is a polygon whose sides are congruent (equal). The interior...
Instructional Video5:54
Curated Video

Using Equations to Find Missing Angles

K - 5th
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...
Instructional Video21:27
Curated Video

Problem solving with non right-angled trigonometry

Pre-K - Higher Ed
Pupil outcome: I can use my knowledge of trigonometry to solve problems. Key learning points: - Non right-angled trigonometry can be applied in various contexts - It has the potential to be applied whenever a triangle can be drawn
Instructional Video6:11
Brian McLogan

Determine if a set of points makes up a rectangle using the distance formula

12th - Higher Ed
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of...