1. Bell Ringer 12-8-17 1. How many degrees is a radian?
2. How many radians are in a circle?
3. What angles are “like” 30°?
4. What is 45° in radians?
5. What are the rules for special right triangles ( and )?
6. What are the trig ratios for sine, cosine, and tangent?

2. Right Triangles in the Unit Circle
Friday, December 8, 2017

3. The Unit Circle in the Coordinate Plane

4. The Unit Circle in the Coordinate Plane

5. The Unit Circle in the Coordinate Plane

6. The Unit Circle in the Coordinate Plane

7. The Unit Circle in the Coordinate Plane

8. The Unit Circle in the Coordinate Plane

9. The Unit Circle in the Coordinate Plane

10. The Unit Circle in the Coordinate Plane

11. The Unit Circle in the Coordinate Plane

12. The Unit Circle in the Coordinate Plane

13. The Unit Circle in the Coordinate Plane

14. The Unit Circle in the Coordinate Plane

15. The Unit Circle in the Coordinate Plane

16. The Unit Circle in the Coordinate Plane

17. Trigonometric Ratios

18. Trig Ratios in a Circle

19. When are the trig values positive and when are they negative?
Just remember:
If you want someone to be positive, Add Sugar To Coffee.

21. Examples Find the exact values of the following:
1. cos (90°) 2. sin (45°) 3. tan (30°)
4. tan (45°) 5. sin (270°)

22. More Examples Find the exact values of the following:
1. sin (240°) 2. cos (315°) 3. tan (135°)
4. sin (-240°) 5. tan (-150°)

23. More Examples Find the Basic Trig Values for angle C.
Find the 3 basic trig functions for the given point on the terminal side in standard position. (5, -8)

24. More Examples

25. More Examples

26. Classwork: Algebra 2 p.707 #21-40 all Homework: Right Triangle Trig
Assignments
Classwork: Algebra 2 p.707 #21-40 all
Homework: Right Triangle Trig

27. Exit Ticket
1. What are the possibilities for the x and y coordinates of the quadrantal angles?
2. What are the “special” angles?
3. What are the (positive or negative) possibilities for the x and y coordinates of the “special” angles?