Question

diameter of a circular garden is 9.8m.Find its area

Answer 1

$$\begin{gathered} \mathrm{Diameter}\mathrm{of}\mathrm{circular}\mathrm{garden}=9.8\mathrm{m} \\ \mathrm{So}\mathrm{radius}\mathrm{of}\mathrm{circular}\mathrm{garden}=\frac{9.8}{2}=4.9\mathrm{m} \\ \mathrm{So}\mathrm{Area}={\mathrm{\pi r}}^2=\frac{22}{7}\times 4.9\times 4.9{\mathrm{m}}^2 \\ =75.46{\mathrm{m}}^2 \end{gathered}$$