1. Warm Up

2. Angles of Depression/Elevation Law of Sines & Area of a A December 10 th, 2013 B December 11 th, 2013

3. Angles of Elevation/Depression

4. Example

6. Area of a Triangle w/ Height

7. How to Label the Sides/Angles

8. The Area of a Triangle Formula

10. Example

13. Law of Sines / The Sine Rule

14. So when do I use law of sines and when do I use trig ratios? Use basic trig ratios and equations for RIGHT TRIANGLES ONLY! Law of Sines can be used when not a right triangle and given:

15. Law of Sines / The Sine Rule

16. Example-Finding Sides

17. Example-Finding Angles

18. Examples:

19. Example

20. Homework A Day Edition 2 Pg. 404 #1-3, 5-6, 9 Pg. 413 #1 and #4 Pg. 417 #1 Pg. 418 #1-2 B Day Edition 1 Pg.329-330 #1-3, 5-6, 12 Pg. 338-339 #1 and #4 Pg. 341 #1 Pg. 343 #1-2