Need help with a math problem

At vertex C of triangle ABC, there is a line passing through that intersects side AB at point D, such that angle ACD equals angle ABC, which also equals angle B. Given that AB = 12 and BC = 9, I would truly appreciate some assistance with this

frozenscout7 said:A line passes through vertex C of triangle ABC and intersects side AB at point D. This results in angle ACD being equal to both angle ABC and angle B. Given that AB=12 and BC=9, I'm stuck. Any help would be appreciated.

And what exactly are you looking for? I don't follow. Do you need the lengths of sides a, b, and c?