What is pi? Here's an explanation that uses pie in honor of Pi Day

Math aficionados around the world celebrate March 14 (3/14) as Pi Day.

In honor of the day dedicated to the mathematical representation of the ratio of a circle's circumference to its diameter, we decided to try to explain pi using one of our favorite sweet treats -- pie!

For your reference, this should not be confused with National Pie Day, which is celebrated Jan. 23.
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