The 'Math Guy' Presents 5 Facts About 3.14

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People across the world are eating pies and celebrating the circle this Saturday — and this year's Pi Day is particularly special. The full date, 3/14/15, is pi to the first four places. At 9:26 a.m. and 53 seconds, you can even celebrate pi to nine places: 3.141592653.

NPR's Math Guy, ...Read More

Source: NPR Science - ingested into KQED

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