[tex] \sf{\qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
The equation of circle in standard form can be represented as :
[tex]\qquad \sf \dashrightarrow \:(x - h) {}^{2} + (y - k) {}^{2} = r {}^{2} [/tex]
where,
now, let's plug in the values :
[tex]\qquad \sf \dashrightarrow \:(x - 0) {}^{2} + (y - 0) {}^{2} = 6 {}^{2} [/tex]
[tex]\qquad \sf \dashrightarrow \: {x}^{2} + {y}^{2} = 36[/tex]
That's the required equation of circle.
