Find and Use Vertical Angles

$\color{red}{1}$ & $\color{orange}{4}$, $\color{blue}{2}$ & $\color{green}{3}$, $\color{purple}{5}$ & $\color{pink}{6}$

$\color{red}{1}$ & $\color{green}{3}$, $\color{blue}{2}$ & $\color{pink}{6}$, $\color{purple}{5}$ & $\color{orange}{4}$

$\color{red}{1}$ & $\color{orange}{4}$, $\color{blue}{2}$ & $\color{purple}{5}$, $\color{green}{3}$ & $\color{pink}{6}$

$\color{red}{1}$ & $\color{pink}{6}$, $\color{green}{3}$ & $\color{orange}{4}$, $\color{blue}{2}$ & $\color{purple}{5}$