Law of Sines:
In any triangle Δ ABC, we have:
To differentiate Law of Sines from Law of Cosines, the Law of Sines can be used to solve a triangle in the following cases:
1. The two angles and the included side are given (ASA or Angle-Side-Angle).
2. The two angles and the side opposite one angle are given (AAS or Angle-Angle-Side).
Please click image below to view an example, one of the problems I solved from the textbook Our World of Math, K-9).
Stick to the pattern/rule/ steps, and you can solve similar problem on your own. Happy solving :-)