Question

Fred is standing on a 25m tower and sees a snake on the ground 18m from the base of the tower, what is the angle of depression from fred to the snake?

Answer 1

i have no idea what "angle of depression" means but to find the angle i drew, note that
\[\tan(\theta)=(\frac{18}{25})=.72\] so
\[\theta=\tan^{-1}(.72)\]

Answer 2

if it is the other angle you need, subtract the result from 90 to get your answer

Answer 3

Fred should go back home and relax.

Answer 4

Angle of depression is the angle it makes with the horizontal.
arctan(25/18)=54.25 degrees