Question

which angles are angle - related description not fully visible angles? ∠tsu and ∠rsp, ∠opn and ∠rsp, ∠ops and ∠opn, ∠rsp and ∠rsu

Explanation:

Step1: Recall vertical - angles definition

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

Step2: Analyze each option

• $\angle TSU$ and $\angle RSP$: These are vertical angles as lines $RT$ and $UN$ intersect at point $S$.
• $\angle OPN$ and $\angle RSP$: These are not vertical angles as they are not formed by the intersection of the same two - line pairs.
• $\angle OPS$ and $\angle OPN$: These are adjacent angles, not vertical angles.
• $\angle RSP$ and $\angle RSU$: These are adjacent angles, not vertical angles.

Answer:

$\angle TSU$ and $\angle RSP$