Question

Find the area of the coloured regions

Answer 1

Area of colored regions = Area of square - 2 $\times$ area of semi-circle

= $7\times 7-2\times \frac{1}{2}\times \frac{22}{7}\times \frac{7}{2}\times \frac{7}{2}$

= $49-\frac{154}{4}=\frac{196-154}{4}=\frac{42}{4}=10.5{cm}^2$