Question

which angles are vertical to each other?

Explanation:

Step1: Recall the definition of vertical angles

Vertical angles are the angles opposite each other when two lines cross.

Step2: Analyze each option

• For $\angle6$ and $\angle2$: They are not opposite each other when two lines cross.
• For $\angle3$ and $\angle2$: They are adjacent angles, not vertical angles.
• For $\angle6$ and $\angle8$: They are opposite each other when two lines cross.
• For $\angle8$ and $\angle1$: They are not opposite each other when two lines cross.

Answer:

$\angle6$ and $\angle8$