Khan Academy
Khan Academy: Constructing Angles
Sal uses a protractor to create 10 degrees and 155 degrees angles. [2:41]
Khan Academy
Khan Academy: Drawing Acute, Right and Obtuse Angles
Learn how to draw acute, right, and obtuse angles with given points.
Khan Academy
Khan Academy: Angles: Introduction
Two rays that share the same endpoint form an angle. Learn about angles and the parts of an angle, like the vertex.
Khan Academy
Khan Academy: Acute, Right, & Obtuse Angles
Acute angles measure less than 90 degrees. Right angles measure 90 degrees. Obtuse angles measure more than 90 degrees. Learn about angles types and see examples of each.
Khan Academy
Khan Academy: Measuring Angles With a Circular Protractor
Lindsay measures angles with a circular protractor.
Khan Academy
Khan Academy: Measuring Angles in Degrees
Learn how to measure an angle with a protractor.
Khan Academy
Khan Academy: Measuring Angles Using a Protractor 2
Sal measures several angles with a protractor.
Khan Academy
Khan Academy: Decomposing Angles
The teacher finds the measure of angle using addition.
Khan Academy
Khan Academy: Measuring Angles Using a Protractor
Learn to use a virtual protractor to measure angles.
Khan Academy
Khan Academy: Recognizing Angles
Demonstrates how to solve problems that ask you to identify types of angles. [2:15]
Shmoop University
Shmoop: Angles
This video discusses angles in an original, cute manner, illustrating different types of angles with animated characters.
Loyola University Chicago
Math Flix: Exploring Angles Using a Clock
This QuickTime movie provides an opportunity to learn about different types of angles using a clock. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Loyola University Chicago
Math Flix: Complementary/supplementary Angle Computation
This QuickTime movie provides an opportunity to learn about computing the total degrees for complementary and supplementary angles. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying...