Answer:
angle WSV = 37°
Step-by-step explanation:
Angle RSU and Angle VST are verticle angles, which means they have the same measure.
Angle VST = 53°
Since SW is perpendicular to RT, that means angle WST is a right angle (90°).
Subtract angle VST from 90°.
90 - 53 = 37°
angle WSV = 37°
