Question

which angles are congruent to each other? ∠4 and ∠3 ∠2 and ∠5 ∠1 and ∠3 ∠4 and ∠1

Explanation:

Step1: Recall vertical - angle property

Vertical angles are congruent. When two lines intersect, the pairs of opposite angles are vertical angles.

Step2: Identify vertical - angle pairs

In the given figure, ∠1 and ∠3 are vertical angles, and ∠2 and ∠4 are vertical angles.

Answer:

∠1 and ∠3