Question

which angle is vertical to ∠6? ∠1 ∠4 ∠3 ∠5

Explanation:

Step1: Recall vertical - angle definition

Vertical angles are formed when two lines intersect. They are opposite each other and have equal measures.

Step2: Identify vertical angle to ∠6

In the given figure, when two lines intersect at the point where ∠6 is located, the angle opposite to ∠6 is ∠4.

Answer:

∠4