Question

which angle is adjacent to ∠3? ∠1 ∠2 ∠6 ∠5

Explanation:

Step1: Recall adjacent angle definition

Adjacent angles share a common side and vertex, and don't overlap.

Step2: Analyze ∠3's neighbors

∠3 shares a side with ∠2 (and ∠4, but ∠2 is an option). ∠2 and ∠3 share a vertex and side, no overlap. ∠1, ∠6, ∠5 don't share a side with ∠3.

Answer:

∠2