How do you draw angles of rotation in standard position?

1 Answer
Gió
Dec 29, 2014

You can draw an angle in standard position by positioning its vertex at the origin and one "ray" on the positive x-axis. The ray on the x-axis is called the initial side and the other ray is called the terminal side.
enter image source here

An angle is then measured POSITIVE for a counterclockwise rotation and NEGATIVE for a clockwise rotation:
enter image source here

When two angles have the same initial and terminal sides, they are said to be coterminal angles.
Angles of −315° and 45° are coterminal angles.
enter image source here

Related questions
See all questions in Measuring Rotation
Impact of this question
40517 views around the world
You can reuse this answer
Creative Commons License