i don't know if i've posted in the right forum but anyway

i've been searching on the internet for info about angles in the hyperbolic plane and come with nothing useful as to how to find angles between two hyperbolic lines.

also using the upper half plane model

example:

L = {z ∈ H | |z − 5| = 3}

M= {z ∈ H | |z − 7| =√5}

i get 2 + √5i as the intersection point (am i right?)

but i don't know where to go from there to find the angle between.

please help!