Sorry, it's upside down :(
How do i go about solving A. I know that for somthing to be congruent it needs to
I know that C = B because they lie on a circuference and a chord that binds them is A. Where do I go from now?
I cant see it. Do you know a good technique for spotting it?The angle between a tangent and a chord is equal to the angle made by that chord in the alternate segment.