7. Calculate the area of the segment

In the given figure, \(DACB\) is a quadrant of a circle with centre '\(O\)' and radius 4.1 \(cm\). If \(OD = \)3 \(cm\), find the area of the region. [Use \(\pi = \frac{22}{7}\)]

 

 

The area of the shaded region \(=\)  \(cm^2\).