Question

which angles are vertical to each other? ∠11 and ∠6 ∠8 and ∠2 ∠2 and ∠1 ∠8 and ∠6

Explanation:

Step1: Recall vertical angles definition

Vertical angles are opposite angles formed by two intersecting lines.

Step2: Analyze each option

• For $\angle11$ and $\angle6$: Not formed by two intersecting lines.
• For $\angle8$ and $\angle2$: Not formed by two intersecting lines.
• For $\angle2$ and $\angle1$: Adjacent angles, not vertical.
• For $\angle8$ and $\angle6$: Formed by two intersecting lines and are opposite.

Answer:

$\angle8$ and $\angle6$