Circle

Two tangents are drawn from a point P to the circle x² + y² $-$ 2x $-$ 4y + 4 = 0, such that the angle between these tangents is ${\tan ^{ - 1}}\left( {{{12} \over 5}} \right)$, where ${\tan ^{ - 1}}\left( {{{12} \over 5}} \right)$ $\in$(0, $\pi$). If the centre of the circle is denoted by C and these tangents touch the circle at points A and B, then the ratio of the areas of $\Delta$PAB and $\Delta$CAB is :