CBSE Class 10 Maths (Standard) 2016 · Paper 30/1/1 · Question 14

In Fig. 7, are shown two arcs $PAQ$ and $PBQ$. Arc $PAQ$ is a part of circle with centre $O$ and radius $OP$ while arc $PBQ$ is a semi-circle drawn on $PQ$ as diameter with centre $M$. If $OP=PQ=10$ cm show that area of shaded region is $25\left(\sqrt{3}-\frac{\pi }{6}\right){\text{ cm}}^2$.