Question

The equation of a circle is ​ (x−2)^2+(y−16)^2=169 ​ . What is the circle's radius?

Answer 1

Hello!

The equation for a circle is

$(x-h)^{2} +(y-k)^{2} = r^{2}$

r is the radius

To find the radius we take the square root of the number in the radius spot

sqrt169 = 13

The answer is 13

Hope this helps!