An airplane leaves an airport and flies due west 150 miles and then 170 miles in the direction S 49.17°W. How far is the plane from the airport (round to the nearest mile)? Image of a triangle with legs of 150 and 170 miles and a hypotenuse with unknown length. The points on the ends of the hypotenuse are entitled airport and plane. The angle opposite the hypotenuse shows a 90 degree angle and an additional south west bearing of 49.17 degrees.