Geometry.
posted by Joe .
A park has a circular swimming pool. The diameter of the pool is 18 ft. What is the distance traveled if you swim around the edge of the pool once? Use pi = 3.14
A) 36 ft
B) 169.65 ft
C) 113.10 ft
D) 56.52 ft
I think it is [D] but I'm not sure.

You're right.