Question

Find the area of the shaded region. (Use $\pi =3.14$)

Answer 1

Area of square $ABCD=14\times 14=196$sq.cm

Radius of the semi-circle formed inside$=2$cm

Area of $4$ semi-circles$=4\times \frac{1}{2}\pi r^2$

$=2\times 3.14\times 2\times 2=25.12$sq.cm

Length of the side of square formed inside the semi - circles $=4$ cm.

Area of the square $=4\times 4=16$sq.cm

Area of the shaded region$=$Area of square $ABCD-$Area of $4$ semi-circles$+$Area of square

$=196-(25.12+16)=196-41.12=154.88$sq.cm