Sine, Cosine, Tangent
Sine of angle X is equal to the length of the opposite side (O) divided by the length of the
hypotenuse (H).
Sin(x) = O/H
Cosine of angle x is equal to the length of the adjacent
Radians
Radians are like degrees and are used for measuring angles.
Its an arbitrary distinction, like feet vs meters, except sometimes its better to use one or the
other.
2 radians = 360 degrees
1 ra