A plane leaves the airport at 200 PM and flies south at 160

A plane leaves the airport at 2:00 PM and flies south at 160 miles per hour. Another plane leaves the same airport at 4:00 PM and flies 11 degrees north of west at 180 miles per hour. At 5:00 PM, what is the distance between the two planes? Report your answer with 2 significant figures.

distance between 2 planes will be 180cos11 - 160 = 16.69