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Mathematics 18 Online
OpenStudy (anonymous):

Which is the best estimate of the circumference of this circle? http://media.apexlearning.com/Images/200701/18/68b3e5da-cef7-4374-b345-e5befaf17cb4.gif A. 30 units B. 3 units C. 1.5 units D. 9 units

OpenStudy (anonymous):

is it 9

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