I think that it would be a
The formula of a cirumference of a circle:

r - radius
We have r = 10. Substitute:

<h3>Answer: C = 20π</h3>
Answer:
2.5
Step-by-step explanation:
you can use pythag theorem and divide c by two:
-3^2+4^2=c^2
9+16= 25
c=5
however, 5/2=2.5
Answer:
2.8 miles
Step-by-step explanation:
2.8 miles or minutes