Question

foundations of euclidean geometry which is another way to name ∠ust? ∠usr ∠tsu ∠tsr ∠uts

Explanation:

An angle can be named by listing the three - point notation where the middle point is the vertex of the angle. For ∠UST, the vertex is S. Another valid way to name it is by reversing the order of the non - vertex points while keeping the vertex in the middle.

Answer:

B. ∠TSU