What is the 3rd point of Vector3.Angle ?

I don’t fully understand how Vector3.Angle works : you need 3 points to define an angle. When using Vector3.Angle, I just need to specify 2 points.

So, what’s the third point used to calculate the angle? I would like to understand which angle this function is returning.

Thanks for your answers :).

I think that would be the origin, 0,0,0