# How do you find the center and radius for #X^2 + Y^2 = 13#?

##### 1 Answer

Jan 7, 2016

centre = (0 , 0 ) and r =

#### Explanation:

require to compare this equation with the standard form of the equation of a circle.

where (a , b ) represents the centre of the circle and r the radius

hence centre = (0 ,0 ) and radius =