1. Introduction to Trigonometry Angles and Radians (MA3A2): Define an understand angles measured in degrees and radians.

2. the rotating ray and the positive half of the x-axis angle

3. a positive angle whose vertex is at the center of a circle central angle

4. 2 angles with a sum of 90 degrees complementary angles

5. 2 angles in standard position that have the same terminal side coterminal angles

6. The beginning ray of an angular rotation; the positive half of the x- axis for an angle in standard position initial side

7. a clockwise measurement of an angle negative degree measure

8. Moving around a circle toward the right; a negative rotation Clockwise

9. a counterclockwise measurement of an angle positive degree measure

10. Opposite to clockwise; moving around the circle toward the left; a positive rotation counterclockwise

11. An angle in standard position with a terminal side that coincides with one of the four axes quadrantal angle

12. One of the 4 regions into which the x- and y-axes divide the coordinate plane quadrant

13. A unit of angle measure radian

14. The position of an angle with vertex at the origin, initial side on the positive x-axis, and terminal side in the plane standard position

15. 2 angles with a sum of 180 degrees supplementary angles

16. The ending ray of an angular rotation; rotating ray terminal side