Answer:
70.8°
Step-by-step explanation:
The sides and angles are related in a right triangle such that ...
Tan = Opposite/Adjacent
tan(S) = UT/US = 6.6/2.3
The inverse tangent function is used to find the angle from its value:
∠S = arctan(6.6/23)
∠S ≈ 70.8°
