21. At 2115 your position is LAT 41°14.4'N, LONG 72°07.2'W. At 0015 your position is LAT 41°03.3'N, LONG 72°37.9'W. What was your true course made good?

The vessel's course was determined by calculating the change in latitude and longitude, then using those differences to form a right triangle. The tangent of the angle between the course and true north was then calculated, resulting in a true course made good of 245T.