Originally Posted by

**nathan02079** I was given two diagrams and explanations.

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Now I have to explain:

1. Why is $\displaystyle \angle1$ equal to half of $\displaystyle arc(AB)$?

2. Why is $\displaystyle \angle2$ equal to half of $\displaystyle arc(CD)$?

3. If $\displaystyle \angle1=\angle2$, what can you say about $\displaystyle arc(AB)$ and $\displaystyle arc(CD)$? Why?

Like, I know the rules. I see the pictures, it's just there. It's always implied. Always the case. But I can't really EXPLAIN it or put it in words. It's so frustrating!

Any help is appreciated. Thanks!