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Mathematics 18 Online
OpenStudy (anonymous):

What is the radius of a circle with a circumference of 8π? http://diagnostic.achievementseries.com/cdn/1/_graphics_math_circ_form/7ef3dea3-5ac7-4db8-b3f3-6678975c3085.gif A. 4 B. 64 C. 16 D. 8

OpenStudy (yanasidlinskiy):

What do you think it is??

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