Question

My question is for the 9th one​

Answer 1

Circumference of the circle= 2πr

→22= 2πr

→22= 2×$\frac{22}{7}$×  r

→ 11= $\frac{22}{7}$× r

→ r= $\frac{7}{2}$

Area of quadrant= $\frac{1}{4}$ π$r^{2}$

= $\frac{1}{4}$×$\frac{22}{7}$×$\frac{7}{2}$×$\frac{7}{2}$

= 9.625$cm^{2}$