If the radius of a circle is 6 inches, what is the circumference?

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Answer 1 · 2018-04-06T19:03:38

#C=12pi # in

#C=2pir.# Given #r=6#,

#C=2pi(6)=12pi# in

Answer 2 · 2018-04-06T19:04:22

#12pi# inches or about #37.699# inches

Here's how I did it:

The formula for the circumference of a circle is #2pir#.

We know that the radius is #6# inches, so we can plug that into the formula:
#2pi(6)#

Now multiply the #2# with the #6#:
#12pi# inches or about #37.699# inches (when we multiply the #12# with #pi#)

Hope this helps!