# What Is Pi Day?

Pi Day is a festival celebrating the mathematical constant Ï€ or pi. This holiday is commemorated on March 14 or 3/14 in month/day date format because three, one and four are the three significant digits of Ï€ in the decimal form.
Pi Day is a holiday to celebrate the mathematical constant Pi. It is celebrated on March 14, because Pi is approximately 3.14.
Pi Day was Thursday, March 14, 2013 this year.
Pi day is actually a day that celebrates the mathematical symbol Pi around the world. Pi is the ratio of circumference of a circle to its diameter. Pi day is March 14th.
Q&A Related to "What Is Pi Day"
 Pi Day occurs every year on March 14th. Pi is 3.14 hence why it is celebrated on the 14th of March. There is also a Pi Approximation Day which is observed on July 22nd of each year. http://answers.ask.com/Science/Mathematics/when_is...
 Pi day is an actual holiday to celebrate the mathematical number of pi or 3.14 for short. March 14 (3:14) is usually the time of the celebration with food and activities for those http://answers.ask.com/Science/Mathematics/what_is...
 1. Recognize the appropriate day and time. Pi Day is celebrated based on the American date formatting (month-date) 3.14, or March 14. Pi Minute is celebrated on 3.14 at 1:59 p.m. http://www.ehow.com/how_2183976_celebrate-pi-day.h...
 1 Eat pi foods . Eating pi foods may be the easiest and the most fun way to celebrate pi. If you're in school, everyone can bring in a pi-themed food for a pi-pot luck, and if you're http://www.wikihow.com/Celebrate-Pi-Day
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Pi Day is an unofficial 'holiday' that celebrates the mathematical symbol, Pi, a constant used in geometry. Since the value of Pi begins as 3.14, the day is celebrated ...
Pi is the numerical representation of what is called a math 'constant'. The scientific and/or mathematical term 'Pi' starts out as 3.14 so the month and date ...
Pi day is an actual holiday to celebrate the mathematical number of pi or 3.14 for short. March 14 (3:14) is usually the time of the celebration with food and ...