# Thread: Two Circles Reflecting

1. ## Two Circles Reflecting

Not to scale. Angles and distances for example only

Known:
radius of large ball (r1)
radius of small ball (r2)
line BC = r1 + r2
line AD
line AB
point A
point B
point D
angle BAC

Find:
lind CD
line AC = line AD + line CD
point C

Anyone know what formula I would use to find point c, based on what info I DO have? Basically I know the length of two sides, and an angle (but not the angle between them). If I can find the length of the other side I can then find the point myself.

Thanks!
-Jason

2. This seems to be called an SSA triangle -- side, side, angle. I'll see if I can track down anything about those on google.