Defining the Coterminal Angle
Angles are not only from 0 to 360 degrees. Angles can formed from any size degree - large, small, and even negative! Use the worksheet below to discover how these angles relate to the angles from 0 to 360.
With this applet, use the slider to explore angles from -2880 to 2880 degrees. Notice the value of the slider angle α' and α. These two angles are <strong>coterminal</strong>.
To examine the Greatest Negative Coterminal Angle, click of check box.