1. Chapter 9 Trig Applications Fr. Chris Trig Applications Fr. Chris

2. Right Triangles Proof:Also...

3. 9.1(p. 633)

5. What about Triangles that AREN’T Right Triangles?

6. Law of Sines or for that matter... If you know two angles and a side

7. Proof

8. ASA Case (1 solution)

9. SAA/ASS Ambiguity See page 640 for details... Don’t Panic... it sorts itself out...

10. The Solution?

11. Could Both Beta’s Work?

12. Could neither work? But doesn’t sine stay between 1 and -1????? ERR:DOMAIN

13. WHAT ABOUT SAS & SSS? Law of Sines won’t work!

14. Law of Cosines

15. Proof

16. SAS page 651#9

17. SSS page 651#21