Question

name the marked angle in 2 different ways.
(there is a triangle - like figure with points q, r, p, o. the marked angle is at point o between segments or and op. then there are input boxes for the angle names and a submit answer button.)

Explanation:

1. The marked angle has its vertex at point O, with sides extending to points R and P. One way to name it is using the three points, with the vertex in the middle: ∠ROP (or ∠POR, as the order of the side points can be reversed).
2. Since there is only one angle marked at vertex O, we can also name it using just the vertex letter: ∠O.

Answer:

$\angle ROP$
$\angle O$

(Note: $\angle POR$ is also an acceptable alternative to $\angle ROP$)