Yesterday we did an activity to review the basics of right triangle trigonometry. Today we reviewed non-right triangle trigonometry. This includes the Law of Sines and Law of Cosines, as well as the sine-based formula for area. Don’t forget about the **ambiguous case** of the Law of Sines, which arises when you’re given two sides and an adjacent angle (the dreaded SSA arrangement)!

There are not separate notes and homework assignments for this lesson, so I’m uploading both the homework and the answers. We started this work in class, and your homework is to finish it.

## Today’s Files

- Finals Review HW 9 – Non-right Triangle Trigonometry
- Video about Law of Sines examples from HW
- Video about Law of Cosines examples from HW