Two airplanes at points A and B, have elevations of 23,000 ft and 18,000 ft, respectively. Both are flying east toward an airport control tower at T. From T, the angle of elevation of airplane at A is 4 degrees and of airplane at B is 2.5 degrees. How far apart (in miles) are the airplanes? (5280 feet = 1 mile)??
PLZ HELP
PLZ HELP