Question

which angles are adjacent to each other? ∠15 and ∠13 ∠11 and ∠12 ∠14 and ∠5 ∠6 and ∠16

Explanation:

Step1: Recall adjacent - angle definition

Adjacent angles share a common side and a common vertex and do not overlap.

Step2: Analyze each option

• For ∠15 and ∠13: They do not share a common side.
• For ∠11 and ∠12: They share a common side and a common vertex and do not overlap.
• For ∠14 and ∠5: They do not share a common side or vertex.
• For ∠6 and ∠16: They do not share a common side or vertex.

Answer:

∠11 and ∠12