Question Number 202760 by Mastermind last updated on 02/Jan/24
Answered by ajfour last updated on 02/Jan/24
$$\frac{\pi}{\mathrm{2}} \\ $$
Commented by Mastermind last updated on 02/Jan/24
$$\mathrm{your}\:\mathrm{workings}\:\mathrm{please}! \\ $$
Commented by ajfour last updated on 02/Jan/24
$${req}\:{area}=\:\frac{\pi{r}^{\mathrm{2}} }{\mathrm{2}}\:\:\: \\ $$$${since}\:{r}=\mathrm{1},\:\:{required}\:{region}=\frac{\pi}{\mathrm{2}} \\ $$