Mathematics - Circle Question with Solution | TestHub

$\pi {\mathrm{r}}^2=154\Rightarrow \mathrm{r}=7$ For centre on solving equation $2x-3y=5\&3x-4y=7\text{ or }x=1,y=1\text{ centre }=(1,-1)$ Equation of circle, $(\mathrm{x}-1{)}^2+(\mathrm{y}+1{)}^2=7^2$ $x^2+y^2-2x+2y=47$