Pi Day is March 14 - 3.14 - and to many it's a big deal

Each year when March 14 rolls around, numberphiles key in on the number Pi because its first three digits, 3.14 align with the calendar date 3/4, which has led to designating the date Pi Day.

To help bring you up to speed on the day, here's a video on the basics of Pi Day, a more thorough look at Pi itself, and and finally a pie-in-the-face Pi Day challenge.

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