So i was watching this lecture on Circle theorems and the professor was talking about this angle inscribed theorem he said
The angle subtended by the arcs at center is always exactly twice the angle subtended at the circumfence. That works even if we're looking at two points at either end of a diagonal, which is the case, it's easy to forget.
i am totally confused, what two points and diagonal he was talking about help me please.
i have lecture video if you want i can post YouTube link its a 4 min lecture