Question

which angles are adjacent angles? ∠mnk and ∠jki ∠mnk and ∠jkn ∠mnk and ∠onk ∠mnk and ∠lki

Explanation:

Step1: Recall adjacent - angle definition

Adjacent angles have a common vertex and a common side, and no interior points in common.

Step2: Analyze each option

For $\angle MNK$ and $\angle JKI$, they have no common vertex and side; for $\angle MNK$ and $\angle JKN$, they have a common vertex $N$ and a common side $NK$, and no interior - points in common; for $\angle MNK$ and $\angle ONK$, they overlap; for $\angle MNK$ and $\angle LKI$, they have no common vertex and side.

Answer:

$\angle MNK$ and $\angle JKN$