Question 281771
A plane's altitude is 2400 ft. For the pilot, the angle of depression of the base of a control tower is 13 degrees. To the nearest foot, what is the distance from the pilot to the base of the control tower?
--------------
Draw the picture:
You have a right triangle with 
base = x
height = 2400
Angle opposite the height = 13 degrees
-----------------------------------------
Equation:
tan(13) = 2400/x
x = 2400/tan(13)
x = 10395.54 ft.
==================
Cheers,
Stan H.



a. 2400 ft
b. 31,200 ft
c. 10,396 ft
d. 10,669 ft