which angle number represents an angle adjacent to ∠jrm?

which angle number represents an angle adjacent to ∠jrm?
Answer
Explanation:
Step1: Recall adjacent - angle definition
Adjacent angles share a common side and a common vertex.
Step2: Identify angles at vertex R
At vertex R, angles ∠JRM and ∠MRK share side $\overrightarrow{RK}$ and vertex R. Angle ∠MRK is represented by ∠2.
Answer:
∠2