Question

ik and ln are parallel lines. which angles are vertical angles? ∠kjm and ∠ijh, ∠kjm and ∠nmj, ∠kjm and ∠kjh, ∠kjm and ∠nmo

Explanation:

Step1: Recall vertical - angle definition

Vertical angles are formed when two lines intersect. They are opposite each other and are congruent.

Step2: Analyze the intersection at point J

Lines $\overleftrightarrow{IK}$ and $\overleftrightarrow{HO}$ intersect at point J.

Step3: Identify vertical - angle pairs

$\angle KJM$ and $\angle IJH$ are vertical angles because they are opposite each other at the intersection of the two lines.

Answer:

$\angle KJM$ and $\angle IJH$