I've attached a picture of what it should look like.
Well, you probably know this already, but you need a TI-30Xa calculator for this.
Anyway, we are given the adjacent side and hypotenuse, what trig ratio is that? It's Cosine.
So divide the adjacent/hypotenuse:
32,000/50,000
You should get 0.64
Whip out your calculator, multiply [tex] cos^{-1} [/tex] to 0.64.
The angle of depression should be roughly 50.21 degrees.
P.S. [tex]cos^{-1} [/tex] is the inverse of cos which can be found by using the second button in the top left corner, then hitting cos. :D
