Answer:
11
Step-by-step explanation:
Formula for finding a circumference = [tex]2\pi r[/tex]
You are given the circumference which is [tex]22\pi[/tex]
[tex]22\pi =2\pi r[/tex]
So you divide both sides by [tex]2\pi[/tex] and [tex]\pi[/tex] cancels out
[tex]\frac{22\pi }{2\pi } =\frac{2\pi }{2\pi } *r[/tex]
r=11