# How do you find the center and radius of the circle given x^2+y^2=144?

Oct 14, 2016

$\text{center coordinates: } \left(0 , 0\right)$
$r a \mathrm{di} u s : 12$

#### Explanation:

$\text{the general equation for circle is : } {\left(x - a\right)}^{2} + {\left(y - b\right)}^{2} = {r}^{2}$

$\left(a , b\right) : \text{center coordinates}$

$r : \text{radius}$

$a = 0 \text{ ; "b=0" ; } r = \sqrt{144} = 12$

$\text{center coordinates: } \left(0 , 0\right)$
$r a \mathrm{di} u s : 12$