The circumfrence? I thought the answer was 56...
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The circumfrence? I thought the answer was 56...

[From: ] [author: ] [Date: 12-12-08] [Hit: ]
......
http://tinypic.com/r/a0kp7c/6

Its not an option so is 54 correct?

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the answer is 18 pi because the circumference formula is 2*pi*radius, so the answer left in terms of pi is 2*9pi. Remember radius is half of diameter (which is 18).
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