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What is the clrcumference of a circle with a diameter of 9 Inches? 28 2/7 in 24 4/7 in 30 in 27 in ​
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What is the clrcumference of a circle with a diameter of 9 Inches?

28 2/7 in

24 4/7 in

30 in

27 in
​

User Stefan Koenen
by
3.1k points

1 Answer

3 votes
28 2/7 in
Step-by-step explanation:
use the formula C=2pi(r)
d=2r
if diameter is 9 inches, we know the radius is 9/2 so r is 4.5
plug in 4.5
C=2(pi)(4.5)
C= 28.27 or 28 2/7 in
User David Driscoll
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3.5k points
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