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From Karnataka Open Educational Resources
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, 10:20, 2 December 2014
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| | = Math Fun = | | = Math Fun = |
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| − | When you roll over a circle on a number line, the circle perimeter (circumference) ends at around 3.14 if the diameter measures 1 on the number line, see
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| − | http://www.distractify.netdna-cdn.com/wp-content/uploads//2014/07//121.gif
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| − | A Geogebra applet also does the same
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