Question

which angles are congruent to each other? ∠10 and ∠12 ∠11 and ∠6 ∠11 and ∠4 ∠15 and ∠10

Explanation:

Step1: Recall vertical - angle property

Vertical angles are congruent.

Step2: Identify vertical - angle pairs

$\angle11$ and $\angle4$ are vertical angles.

Answer:

C. $\angle11$ and $\angle4$