Question

which angle number represents an angle vertical to ∠psl?

Explanation:

Step1: Recall vertical - angle definition

Vertical angles are formed when two lines intersect. They are opposite each other and are congruent.

Step2: Identify intersecting lines

Lines $LP$ and $JK$ intersect at point $R$, and lines $LP$ and $MN$ intersect at point $S$.

Step3: Locate vertical angle to $\angle PSL$

The angle vertical to $\angle PSL$ is $\angle MSN$. Among the numbered angles, $\angle 6$ is $\angle MSN$.

Answer:

$6$