Hello everyone, Im having issues with this trig problem. Im not sure where to start and how to solve it. Thank you in advance for the help. 
A shark is suspended by a wire wound around a pulley of
radius 4 inches. The shark must be lifted 6 inches more to be
completely off the ground. Through how many degrees must the
pulley be rotated counterclockwise to accomplish the 6-inch lift?
A shark is suspended by a wire wound around a pulley of
radius 4 inches. The shark must be lifted 6 inches more to be
completely off the ground. Through how many degrees must the
pulley be rotated counterclockwise to accomplish the 6-inch lift?