Answer:
The radius of the given circle is 11 units.
Step-by-step explanation:
The equation of circle is x²+y²=121
This is standard form of equation.
[tex](x-h)^2+(y-k)^2=r^2[/tex]
where, r is radius of circle and (h,k) is center of circle.
If we compare the standard form of equation to given equation
[tex]r^2=121[/tex]
Now, we solve for r
Taking square root both sides
[tex]r=\sqrt{121}[/tex]
[tex]r=11[/tex]
Hence, The radius of the given circle is 11 units.
