Sophia 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 6625 feet. Sophia initially measures an angle of elevation of 15 degrees to the plane at point A. At some later time, she measures an angle of elevation of 25 degrees to the plane at point B. Find the distance the plane traveled from point A to point B. Round your answer to the nearest tenth of foot if necessary .