I have the problem described in this image (not to scale): http://i.imgur.com/owWVUmj.png
A (partial cathetus), B (small, vertical cathetus) and C (which forms a 90º angle with hypotenuse) are known lengths (A=3, B=8, C=2 meters, inches, or whatever). I need to obtain the exact values of all sides and angles. The most important length I need is X, but I could calculate it myself once I know the at least one of the angles or lengths.
Could someone please tell me how to calculate at least one of the sides or angles?
Thank you very much.