If you have a triangle who's opposite side = 5, and the adjacent side = 3, what is the angle opposite from the opposite side?
If we assume that it is a right-angle triangle, then we have:
Tan(x) =Opposite/Adjacent
Tan(x) =5/3 =1 2/3, so
x=tan^-1(1 2/3), or inverse tangent
x=~59.04 degrees.
