Answer:
3π if in terms of pi or 9.42 if π= 3.14
Explanation:
if you want in terms of π, then 3π
if you want it without π, then 9.42
plug into formula
3= diameter
c=πd
c=π*3
3π or
π=3.14
so 3.14*3, which is 9.42
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