The convenience of modern freeways, railways and airplanes makes travel in America as easy as ()
Two airplanes at 25,000 feet above the ground are flying toward the same airport. Airplane A is flying due south toward the airport at 200 miles per hour, and Airplane B is flying due west toward the airport at 250miles per hour. At 10:00 ~ Airplane A is 700 miles from the airport, and Airplane B is 925 miles from the airport. How far are the two airplanes from each other at 10:30 AM?