**In class**: notes on Law of Sines — using it to solve for missing sides and angles in a general triangle, the ambiguous case SSA. Ambiguous only when the angle is acute, and the non-adjacent side is shorter than the adjacent side, and greater than the length given by assuming that the triangle is right and solving for the side length using sine/cosine/tangent ratios.

**Assignment**:

1) 8.6 on p. 472: 1-9, 15

2) Read 8.7 on Law of Cosines

3) Complete 8.5/8.6 practice problems from packet