# Happy Pi Day!

Pi (Greek letter “π”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is…

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15 Pins 7yCollection by

U.S. Space and Rocket Center

Pi (Greek letter “π”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is…

More

·

15 Pins 7yCollection by

U.S. Space and Rocket Center