The given figure shows two identical semicircles inside a square. What is the area of the shaded region?

(b): Area of shaded region = 1/2 (Area of the square ?  Area of circle) $=$1$2$a$2$[1−$\pi$4$]$ where, a= side of square $=$14$2$2$\left[1-0.785\right]=98\times 0.215=21c$m\displaystyle{2}