How Many Diameters?

How many diameters wrap perfectly around a circle? Here, a quick investigation as to what π really means.
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Tim Brzezinski —

 
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ccss  ccss.hsg.gmd.a  ccss.hsg.gmd.a.1  circle  circles  circumference  class  common  common-core  core  diameter geometry lesson meaning-of-π perimeter pi 显示更多…
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