Question

What is the Surface Area of a Hemisphere?

Answer 1

$$\begin{gathered} \mathrm{Surface}\mathrm{area}\mathrm{of}\mathrm{hemisphere}=2{\mathrm{\pi r}}^2 \\ \mathrm{Where},\mathrm{r}\mathrm{is}\mathrm{the}\mathrm{radius}. \end{gathered}$$