Question

which angles are adjacent to each other? ∠7 and ∠1 ∠10 and ∠7 ∠9 and ∠10 ∠2 and ∠11

Explanation:

Step1: Recall adjacent - angle definition

Adjacent angles share a common vertex and a common side.

Step2: Analyze each option

• For ∠7 and ∠1: They do not share a common vertex or side.
• For ∠10 and ∠7: They do not share a common vertex or side.
• For ∠9 and ∠10: They share a common vertex and a common side.
• For ∠2 and ∠11: They do not share a common vertex or side.

Answer:

∠9 and ∠10