1). Determine which law you would use to find each missing side or angle.
2). Then find it.
![1 Determine which law you would use to find each missing side or angle 2 Then find it class=](https://us-static.z-dn.net/files/d27/edd29128e45367e21654b0edd5c1d7d7.png)
Answer:
(a) the law of cosines
(b) approximately 6
Step-by-step explanation:
Check out the attached photo.