Question

which angles are adjacent to each other? ∠3 and ∠2 ∠5 and ∠7 ∠9 and ∠11 ∠3 and ∠9

Explanation:

Step1: Recall adjacent - angle definition

Adjacent angles share a common side and a common vertex and have no interior points in common.

Step2: Analyze each option

• For ∠3 and ∠2: They share a common side and a common vertex, and have no interior - points in common.
• For ∠5 and ∠7: They are vertical angles, not adjacent.
• For ∠9 and ∠11: They are non - adjacent angles.
• For ∠3 and ∠9: They are non - adjacent angles.

Answer:

∠3 and ∠2