Question

which angles are vertical angles? ∠stv and ∠pqt ∠stv and ∠utq ∠stv and ∠stq ∠stv and ∠roq

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 given angles

In the figure, lines $PR$ and $OV$ intersect at $Q$, and lines $SU$ and $OV$ intersect at $T$. $\angle STV$ and $\angle UTO$ are opposite each other at the intersection of lines $SU$ and $OV$.

Answer:

$\angle STV$ and $\angle UTO$