To the nearest 0.01 degree, what angle of descent (angle of depression) must a plane 50 horizontal miles from the airport and at an altitude of 20,000 feet make for it's final approach? -- I need the equation and the answer for this problem. thanks

Respuesta :

20,000÷50=
[tex]20000 \div 50 = 400ft[/tex]
The plane needs to descend at 400 ft per mile.

At 40 degrees?