# Given #(x+10)^2+(y-3)^2=121# what is the radius of this circle?

##### 1 Answer

Nov 30, 2015

The radius of the circle is

#### Explanation:

In the equation of a circle:

you can write that:

- the radius of the circle is
#r# - the circle's center has coordinates:
#(a,b)#

So in your equation the radius is