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August 02, 2010Mathtrain.TV: Episode 72, Circumference w/ Bob1 minutePlay“Bob” shows us how to find the circumference of a circle....moreShareView all episodesBy Eric Marcos4.41212 ratingsAugust 02, 2010Mathtrain.TV: Episode 72, Circumference w/ Bob1 minutePlay“Bob” shows us how to find the circumference of a circle....more
August 02, 2010Mathtrain.TV: Episode 72, Circumference w/ Bob1 minutePlay“Bob” shows us how to find the circumference of a circle....more