Question

which angle number represents an angle vertical to $angle mrj$?
answer attempt 1 out of 2

Explanation:

Vertical angles are opposite, non-adjacent angles formed by intersecting lines. First, identify $\angle MRJ$: it is formed by lines $JK$ and $LM$ at point $R$, matching angle 3. The vertical angle to $\angle MRJ$ is the opposite angle at the same intersection, which is angle 2.

Answer:

2