Monday, March 14, 2011

Happy Pi Day! Happy Einstein Day!

Today is Pi Day (3.14 or March 14) and it's also Albert Einstein's 132nd birthday!

Pi Rap by sbrunvan

Celebrate Pi Day!

Pi, Greek letter (), is the symbol for the ratio of the circumference of a circle to its diameter. Pi Day is celebrated by math enthusiasts around the world on March 14th. Pi = 3.1415926535…

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