1. The problem statement, all variables and given/known data In what direction is your friend from the starting point after skiing 3km east and then 1.5km north? 2. Relevant equations angle = tan-1(1.5km/3km) = 26.6 degrees 3. The attempt at a solution they want the answer in terms of degrees "north of east " not sure what the rules are for the angle that I should use with north of east as compared to that to use with east of north ? 90-26.6 = 63.4 is there any rule regarding clock-wise and counter-clock wise that would be useful?