Find the missing statements and reasons

$\frac{?}{\text{b}\text{a}\text{r}}(AB)$ and $\frac{?}{\text{b}\text{a}\text{r}}(CD)$ in $o.E$

PROOF

Statements $\frac{\text{P}\text{R}\text{O}\text{O}\text{F}}{\text{R}\text{e}\text{a}}$

sons

$?$

Given

$\frac{?}{{?}_{A}EC}$~$\frac{?}{{?}_D}=EB$

$?$

$\frac{m}{{?}_A}EC=\frac{m}{{?}_D}EB$

$?$

$\frac{m}{{?}_A}EC=$mwidehat$(AC)$ and

$?$

$\frac{m}{{?}_D}EB=mD{B}^{}$

$mA{C}^{}=mD{B}^{}.$

$?$

$?$

If two ares of a circle have the same measure. they are ~$=$