Brian McLogan
Vertical and straight angles solve for the measure of an two angles with two variables
👉 Learn how to find the value of an unknown variable in the expressions representing the values of angles given the relationship between the angles. When given expressions representing the values of angles and the relationship between...
Brian McLogan
What are acute, obtuse, right, and straight angles
👉 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,...
Brian McLogan
Determining two angles that are supplementary
👉 Learn how to define and classify different angles based on their characteristics and relationships are given a diagram. The different types of angles that we will discuss will be acute, obtuse, right, adjacent, vertical, supplementary,...
Curated Video
How to Name and Classify an Angle
In this video lesson, you will learn how to name an angle from a diagram. You will also learn key content vocabulary to classify angles as acute, right, obtuse, straight and reflex. Student practice is embedded in the lesson. Grade 7...
Brian McLogan
Graphing an Angle in Thirds Using PI as an Aide
👉 Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Curated Video
Right, Obtuse, and Acute Angles | Educational Kids Videos
Do you need to learn about the different types of angles in 4th grade? This educational kids math video shows upper elementary math students how to classify different angles! Visually see what acute angles, obtuse angles, right angles,...
Curated Video
Drawing Geometric Figures with Given Characteristics
In this video, the teacher explains how to draw geometric figures with specific characteristics. They cover points, lines, line segments, rays, angles, and different types of lines such as parallel, perpendicular, and intersecting lines.
Math Fortress
Geometry: Collinearity, Betweenness, and Assumptions (Level 1 of 4)
In this video we will go over the concepts of collinearity, betweenness of points, triangle inequality, and assumptions from diagrams.
Brian McLogan
Vertical Angles, Supplementary Angles and Corresponding Angles Used to Solve for X
👉 Learn how to solve for an unknown variable using parallel lines and a transversal theorems. 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,...
Flipped Math
Properties of Parallel Lines
Work within a parallel universe. Scholars learn about the relationships of angles when two parallel lines are intersected by a transversal. They see how to find the measurements of all eight angles by knowing the measure of one angle....
Flipped Math
Angle Pairs
Complement the class by identifying pairs of angles. With a vocabulary lesson, pupils learn the names and definitions of special angle pairs including adjacent, vertical, complementary, supplementary, and linear pairs. Using the...
Flipped Math
Measuring Angles
An informative presentation shows pupils how to name and measure angles. Scholars revisit the different types of angles and their definitions and use their knowledge of what an angle bisector is to solve algebraic problems. At the end,...
CK-12 Foundation
Linear Pairs: Lesson
Place angles in a line. Part of a playlist on basic geometry, an informative video teaches pupils the definition of a linear pair and how to identify them. Using their properties, the resource demonstrates how to solve problems involving...
CK-12 Foundation
Classifying Angles: Lesson
It's time to put the angles in place. Using diagrams, the video presents the basic definitions of the four classifications of angles. The segment in an informative playlist on basic geometry also provides informal descriptions of the...
Math Antics
Angle Basics
Take a linear approach to acquaint the class with angles. The video introduces the idea of angles from the notion of intersecting lines. Using the idea of perpendicular lines, the resource defines right, acute, and obtuse angles...
Mathed Up!
Angles: Parallel Lines
Viewers are presented with seven problems with parallel lines and angle relationships and must use the given information to find the measures of specific angles. To finish, they explain their process in finding the measures in the...
Corbett Maths
Types of Angle
Angle in on the different types of angles. By watching an informative video, scholars see how to classify angles. It covers acute, right, obtuse, straight, and reflex angles. Some example problems focus on classifying angles given their...
Curated OER
What are Supplementary Angles?
What are supplementary angles? They are two angles that when added together make 180 degrees on a straight angle line. Hard to picture that? Then watch this video and see how the instructor illustrates this on a diagram.
Curated OER
How Do You Use Supplementary Angles to Find a Missing Angle?
How can a straight line be called a straight angle? Can angles be combined to form a straight angle? Yes, supplementary angles can be combined to make a straight angle and that is how one can find the value of a missing angle. Take a...
Virtual Nerd
What is the Triangle Sum Theorem?
If you add the value of the three interior angles in a triangle will it equal 180 degrees? Yes it will. The instructor illustrates and proves the Triangle Sum Theorem. Follow closely as she explains her proof.
Math TV
Math tv.com: Trigonometric Functions: Angles, Degress, and Special Triangles
Students learn about the notation and vocabulary associated with angles and triangles. The learning resource consists of a video tutorial and a worksheet with practice problems. In the left hand menu, click Trigonometry, Trigonometric...
Khan Academy
Khan Academy: Geometry: Finding Missing Angles
Shows how to find the measure of missing angles based on the measure of a straight angle. [1:41]
Khan Academy
Khan Academy: Angles: Finding Missing Angles
Shows how to find the measure of missing angles based on the measure of a straight angle.
Art of Problem Solving
Art of Problem Solving: Straight and Vertical Angles
Video tutorial uses examples to reinforce understanding of straight and vertical angles. [5:30]