The diagonal of a quadrilateral is $30\;m$ in length and the length of the perpendiculars to it from the opposite vertices are $6.8\;m$ and $9.6\;m$ . Find the area of the quadrilateral

Question

$\begin{array}{1 1} 246\;m^2 \\ 240\;m^2 \\ 248\;m^2 \\ 340\;m^2 \end{array} $