Question

which is another way to name ∠ust?
o ∠tsr
o ∠tsu
o ∠usr
o ∠uts

Explanation:

An angle can be named by its vertex letter in the middle when there is only one angle at that vertex, or by naming three points with the vertex in - between. For ∠UST, the vertex is S and the other two points are U and T. Another way to name it is ∠TSU as the vertex S is in - between T and U.

Answer:

∠TSU