Answer:
∠UTZ or ∠ZTU
Explanation:
When labeling an angle, you start with a point one of the two lines that form the angle.
(Point U)
Next, you use the point where the two lines intersect.
(Point T)
Finally, you use a point that is on the second line that forms the angle.
(Point Z)
It can be either ∠UTZ or ∠ZTU as the order of the points doesn't matter as long as long as the rays and vertex are the same.
Hope this helps :)