Question

IF THE RADIUS OF A CIRCLE IS 7/ SQUARE ROOT OF PI CM, THEN WHAT IS THE AREA OF THE CIRCLE?

Answer 1

Radius of circle , r = $\frac{7}{\sqrt{\mathrm{\pi }}}\mathrm{cm}$
$\mathrm{area}\mathrm{of}\mathrm{circle}=\mathrm{\pi }{\mathrm{r}}^2=\mathrm{\pi }{\left[\frac{7}{\sqrt{\mathrm{\pi }}}\right]}^2=\mathrm{\pi }\times \frac{49}{\mathrm{\pi }}=49{\mathrm{cm}}^2$