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Brian McLogan
What are opposite rays
👉 Learn essential definitions of points, lines, and planes. A point defines a position in space. A line is a set of points. A line can be created by a minimum of two points. A plane is a flat surface made up of at least three points. A...
Curated Video
Understanding Lens Formation Using Radar Diagrams
The video is about using radar diagrams (also known as ray diagrams) to investigate how the type of lens used and the distance between the lens and object affect the formation of an image. The video shows four different ray diagrams,...
Brian McLogan
What are supplementary 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,...
Curated Video
Understanding Refraction and Ray Diagrams
The video is a lecture on refraction and ray diagrams. It explains how ray diagrams can be used to describe the refraction of waves at the boundary between two different media, such as air and glass. The video covers concepts such as the...
Brian McLogan
What is the difference between a line, line segment and ray
In this video series you will learn step by step how to solve different geometry problems based on my teaching of Geometry in highschool. We will cover topics throughout the whole curriculum. Use these videos to help you with your...
Curated OER
What is an Angle?
An angle is formed when two rays share a common endpoint. Want to know more about angles? There are a lot of terms in this lesson. You might have to watch it two or even three times to make sure you understand all the terms. I recommend...
Curated OER
What is an Angle?
An angle is formed when two rays share a common endpoint. Want to know more about angles? There are a lot of terms in this lesson. You might have to watch it two or even three times to make sure you understand all the terms. I recommend...
Curated OER
What is a Ray?
A ray is a line that begins at an identified point and then goes on forever in one direction. The identified point is called the endpoint. There needs to be another identified point on the line to be able to identify the line as a ray....
Khan Academy
Khan Academy: Geometry: Language and Notation of Basic Geometry
Explains terms and notation of basic elements of geometry. [12:57]
Khan Academy
Khan Academy: Lines, Line Segments, and Rays
Explains the different characteristics of lines, line segments, and rays. [3:38]
Virtual Nerd
Virtual Nerd: What Is a Ray?
Rays are very useful as two rays can create an angle, multiple angles can create a polygon, and by adding another dimension you get three-dimensional solids. This tutorial introduces you to rays and shows you how to name them. [4:51]
Khan Academy
Khan Academy: Introduction to Euclidean Geometry
In this video students gain an understanding of basic ideas in geometry and how we represent them with symbols.
Khan Academy
Khan Academy: Geometry: Lines, Line Segments, and Rays
Compares qualities of line segments, lines, and rays. Practice problems available. [3:38]
Khan Academy
Khan Academy: Introduction to Euclidean Geometry: Lines, Line Segments, and Rays
In this video the students explore the difference between lines, line segments, and rays.
Khan Academy
Khan Academy: Introduction to Euclidean Geometry: Identifying Rays
In this video students learn about the key aspects of rays.
Math Mammoth
Math Mammoth: Lines, Rays, and Angles
Explains what lines, line segments, rays, and angles are, and how to measure an angle opening. [6:28]
Sophia Learning
Sophia: Drawing an Angle on the Unit Circle: Lesson 2
Given a particular angle, this lesson demonstrates how it can be drawn on a unit circle. It is 2 of 7 in the series titled "Drawing an Angle on the Unit Circle."
Sophia Learning
Sophia: Drawing an Angle on the Unit Circle: Lesson 4
Given a particular angle, this lesson demonstrates how it can be drawn on a unit circle. It is 4 of 7 in the series titled "Drawing an Angle on the Unit Circle."
Sophia Learning
Sophia: Drawing an Angle on the Unit Circle: Lesson 7
Given a particular angle, this lesson demonstrates how it can be drawn on a unit circle. It is 7 of 7 in the series titled "Drawing an Angle on the Unit Circle."
Sophia Learning
Sophia: Drawing a Ray: Lesson 3
This lesson will show you the tools and procedures involved in drawing and labeling a ray. It is 3 of 8 in the series titled "Drawing a Ray."
Sophia Learning
Sophia: Drawing a Ray: Lesson 5
This lesson will show you the tools and procedures involved in drawing and labeling a ray. It is 5 of 8 in the series titled "Drawing a Ray."
Sophia Learning
Sophia: Drawing a Ray: Lesson 7
This lesson will show you the tools and procedures involved in drawing and labeling a ray. It is 7 of 8 in the series titled "Drawing a Ray."