Question 23
In the diagram at the right, the area of trapezium $MNQP$ is 21 $\mathrm{cm}^2$. $C$ is the centre of both the big and small circles and $MC$ is perpendicular to $CP$. Find the area, in $\mathrm{cm}^2$, of the shaded region. (Take $\pi=\frac{22}{7}$)
