Question 8A square has side length 84 cm. Three semicircles are drawn inside it, with three sides of the square as diameters, as shown. Find the shaded area in $\mathrm{cm}^2$. Use $\pi=\frac{22}{7}$. $2772\ \mathrm{cm}^2$$5544\ \mathrm{cm}^2$$11088\ \mathrm{cm}^2$$22176\ \mathrm{cm}^2$None of the above
