Answer:
18 x pi
Step-by-step explanation:
circumference = pi x diameter, radius x 2 = diameter
Answer:
C = 18 pi or approximately 56.52 inches
Step-by-step explanation:
C = 2*pi*r
The radius is 9
C = 18 pi
We can approximate pi by 3.14
C = 18*3.14
C =56.52 inches
