Find the area of an isosceles triangle given below, where equal sides are each 10m and $x^{\circ}=30^{\circ}$

Question

$\begin{array}{1 1} (a)\;25\;m^2 \\ (b)\;25\;\sqrt{3}m^2 \\ (c)\;50\;m^2 \\ (d)\;50 \sqrt 3m^2 \end{array} $