56. Exemplar exercise problems XXXII

In the given figure, \(ABCD\) is a trapezium with \(AB || DC\), \(AB = 18 \  cm\), \(DC = 32 \ cm\) and distance between \(AB\) and \(DC = 14 \ cm\). If arcs of equal radii \(7 \ cm\) with centres \(A, B, C\) and \(D\) have been drawn, then find the area of the shaded region of the figure.

 

 

Area of the shaded region \(=\) \(cm^2\)