Answer:
C=22pi or 69.115...
Step-by-step explanation:
A=pi r^2
solve r=11
C=2pi r
C=22pi
Answer: about 69
Step-by-step explanation:
you have to work in reverse
Area=(pi)r^2
because this equalled 121, the radius has to be 11.
SO, we can use the radius to find the circumference
Circumference = 2(pi)r
Circumference = 22pi which is 69.08
