Hi

I was just wondering...

http://www.mathhelpforum.com/math-he...ure361-cg1.bmp

For a question, can I say angles BAO and OCD are equal (angles at the circumference standing on the same arc BD are equal) or is that wrong?

I tried to prove the two triangles congruent in order to prove the angles were equal but failed miserably. (Crying)

Thanx