This two-minute Math Shorts video reviews different types of angles: complementary, supplementary, adjacent angles and then explains how to find unknown angles. This video was made for the PBS Learning Media library, thanks to a generous grant from t...he Corporation for Public Broadcasting. It was produced in collaboration with Utah Education Network.
Common Core State Standards:
CCSS.Math.Content.7.G.B.5 (Grade 7): Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.[more]

When solving special right triangles, remember that a 30-60-90 triangle has a hypotenuse twice as long as one of the sides, and a 45-45-90 triangle has two equal sides. Memorize rules that relate to special right triangles with instructions from a ma...th teacher.[more]

In this video students learn the definition of an angle, the concept of measurement, and the following vocabulary: side, vertex, ray symbol, angle symbol, protractor, degrees, right angle, acute angle, obtuse angle, and straight angle. Students are ...shown these definitions using a diagram and they are discussed. Good video for instruction and review for any grade level.[more]

In this video a math instructor introduces angles that are used a lot in math. He explains what angles are, how they are created, and the main types of angles we used in math.

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