SOLUTION: An airplane is on a flight path that passes directly over an observer. If the distance d from the observer to the plane is 2 miles and the altitude is 1 mile. Determine the angle

Algebra ->  Trigonometry-basics -> SOLUTION: An airplane is on a flight path that passes directly over an observer. If the distance d from the observer to the plane is 2 miles and the altitude is 1 mile. Determine the angle      Log On


   

Question 973159: An airplane is on a flight path that passes directly over an observer. If the distance d from the observer to the plane is 2 miles and the altitude is 1 mile. Determine the angle of elevation from the observer to the plane.
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
1 for altitude, d for hypotenuse, x for measure of angle of elevation in degrees,
d=2

cos%28x%29=1%2Fd
cos%28x%29=1%2F2
highlight%28x=60%29, common trig function values