Angles are measured in degrees, and are classified as right, obtuse, acute, or straight. The measure of the degree of the angle determines the classification type. A right angle measures exactly 90o. An obtuse angle is any angle larger than 90o.
These resources are part of KET's Measurement and Geometry collection.
This video segment originally appeared in KET’s GED Connection series.
This video is available in both English and Spanish audio, along with corresponding closed captions.