Answer:
3791m
Explaation:
We are given the following from the diagram;
Ocean surface = adjacent side = x
hypotenuse = 3900m
Angle of depression = 76.4 degrees
According to SOH
sin theta = opp/hyp
sin 76.4 = opp/3900
Opp = 3900sin76.4
Opp = 3900*0.9719
Opp = 3,790.41
The distance below the ocean surface is approximately 3791m