Question

look at this angle: what is the vertex?

Explanation:

Step1: Recall vertex definition

The vertex of an angle is the point where the two rays meet.

Step2: Identify the point

In the angle $\angle TUV$, the two rays $\overrightarrow{TU}$ and $\overrightarrow{VU}$ meet at point $U$.

Answer:

$U$