Cyclic Quadrilateral

\begin{equation*}
\begin{split}
a + 110^{\circ} & = 180^{\circ}\\\\
a & = 180^{\circ} - 110^{\circ} \\\\
a & = 70^{\circ} \\\\\\
b + 62^{\circ} & = 180^{\circ}\\\\
b & = 180^{\circ} - 62^{\circ} \\\\
b & = 118^{\circ}
\end{split}
\end{equation*}