Practice Standard Equation of Circles - Class 11th Hindi Medium Offered by Unacademy

Standard Equation of Circles

Determine the radius (in cm) of the circle whose equation is $x^{2}+y^{2}+6 x+8 y-26=0$ .

$r=\sqrt{51} \mathrm{cm}$

$r=5 \sqrt{2} \mathrm{cm}$

$r=3 \sqrt{7} \mathrm{cm}$

$r=2 \sqrt{11} \mathrm{cm}$