Question

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

Explanation:

Step1: Recall vertical angles property

Vertical angles are congruent.

Step2: Identify vertical angle of ∠3

By observing the figure, ∠1 and ∠3 are not vertical angles, ∠6 and ∠3 are not vertical angles, ∠5 and ∠3 are not vertical angles. ∠4 and ∠3 are vertical angles.

Answer:

∠4