1. ## geometry

In Attachments.

2. Hello, dgenerationx2!

Find $m\angle B\text{ and }m\angle C$.
What theorem was used to find these angles?
Code:
. . . - - - - * * *
. . .     *           *
. . . A o - - - - - - - o B
. . .  *  \           /  *
. . .       \       /
. . . *       \   /       *
. . . *         *         *
. . . *       /   \       *
. . .       /       \
. . .  *  /           \  *
. . . D o - - - - - - - o C
. . .     *           *
. . .         * * *

The best we can say is: . $\begin {array}{ccc}m\angle B &=& \frac{1}{2}\text{arc}(AD) \\ \\[-4mm] m\angle C &=& \frac{1}{2}\text{arc}(AD) \end{array} \quad\Rightarrow\quad \angle B \:=\:\angle C$

Theorem: An inscribed angle is measured by one-half its intercepted arc.

3. no. that's all there is

4. ## info

This is all the information they gave me to solve this lesson. there is nothing else that i am forgetting.