Answer:
Law of Sines, two sides and an opposite angle are known
Step-by-step explanation:
We are given <R, which is an opposite angle to side r.
Side q is also given, which has an unknown opposite angle, <Q, of which we are required to find.
Since two sides and an opposite angle are known, The Law of Sines would be applied in solving for <Q.
Thus, the following would be used: