Question

which angles are adjacent to each other?
diagram of intersecting lines with labeled angles 1 - 12
options: ∠10 and ∠11, ∠8 and ∠3, ∠11 and ∠2, ∠10 and ∠8

Explanation:

Adjacent angles share a common vertex and a common side, without overlapping.

• $\angle10$ and $\angle11$: Share vertex and side, no overlap.
• $\angle8$ and $\angle3$: No common vertex/side.
• $\angle11$ and $\angle2$: No common vertex/side.
• $\angle10$ and $\angle8$: No common side.

Answer:

$\angle10$ and $\angle11$