Chee spots an airplane on radar that is currently approaching in a straight line, and that will fly directly overhead. The plane maintains a constant altitude of 5925 feet. Chee initially measures an angle of elevation of 15degrees

to the plane at point AA. At some later time, she measures an angle of elevation of 31degrees

to the plane at point BB. Find the distance the plane traveled from point AA to point BB. Round your answer to the nearest tenth of a foot if necessary.