Particle path geometry

[charliedmp]

Hi to all,
I'm stuck with this problem, can anyone help please?
Looking at the attached drawing:

My particle is at point Entry (0,0), is trying to reach the opint Destination (range,0) by first riding along the circle centred in (curvature * Sin(Brg), -curvature *Cos(Brg)).
It exits at point Exit, and then straight lines to point Destination.
I managed to compute distCtrDest, and thus distExit and angleCtrDestEx.
I am now trying to figure out the angle "angeEntryCtrExit".
Any ideas? Thank you in adavnce!
Charlie

 

[charliedmp]

Hi Denis,
Point taken, I could have done a better job in exposing the problem. As for the double posting, not sure how that happened. Anyway, I eventually solved my problem by using the Al Kashi theorem which lets you compute all angles of a triangle given the length of the 3 sides.
Here is the reference if anyone is interested:
https://en.wikipedia.org/wiki/Law_of_cosines

Charlie