An aircraft (at Z) is spotted by two observers (at X and Y) who are L = 1950 feet apart. As the airplane passes over the line joining them, each observer takes a
sighting of the angle of elevation to the plane, as indicated in the figure. If A = 45°,
and B = 40°, how high is the airplane?
h
B)
L
The elevation of the plane is approximately feet.
(Do not round until the final answer. Then round to two decimal places as needed.)