Freda, who is training to use a radar system, detects
an airplane flying at a constant speed and heading
in a straight line to pass directly over her location.
she sees the airplane at an angle of elevation of 15°
and notes that it is maintaining a constant altitude
of 6250 feet. one minute later, she sees the
airplane at an angle of elevation of 52º. how far
has the airplane traveled, to the nearest foot?
determine and state the speed of the airplane, to
the nearest mile per hour.