Find the value of $x$ and $y$ in the following figure. <br>

Question

$\begin{array}{1 1} (a)\; x = 42^{\circ},\; y=12^{\circ} \\ (b)\; x=12^{\circ},\; y=42^{\circ} \\ (c)\; x=24^{\circ}, \;y=48^{\circ} \\ (d)\; x=48^{\circ}, \;y=24^{\circ} \end{array}$