Will you please answer part c? I am having a lot of trouble solving it.

A pilot in a small plane encounters shifting winds. What was the length of the third leg of his trip? He flies 30.0 km at 30" north of east, then 30.0 Record your answer using three significant figures. km due north. From this point, he flies an additional distance in an unknown direction, only to View Available Hint(s) find himself at a small airstrip that his map shows to be 120 km directly north of his starting point. C - 79.4 km Previous Answers Correct Part C What was the direction of the third leg of his trip? Do not use the standard angle. Instead give the direction as how many degrees north of west. Record your answer as a positive number using three significant figures. >View Available Hint(s) 78.1 north of west