33. Exemplar Exercise Problems XIX

The sides of a quadrilateral \(ABCD\) are \(6 cm\), \(8 cm\), \(12 cm\) and \(14 cm\) (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.

 

Area of the quadrilateral \(=\) $\left(i\right)\left(i+\sqrt{i}\right)$\(cm^2\)