Question

which angle is vertical to ∠3? ∠5 ∠2 ∠1 ∠4

Explanation:

Step1: Recall vertical - angle definition

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

Step2: Identify vertical angle to ∠3

In the given figure, ∠3 and ∠1 are opposite each other at the intersection of the two lines.

Answer:

∠1