What is National Pi Day?
Math enthusiasts have been celebrating March 14, or 3/14, as Pi Day for years. It wasn’t until 2009 that the U.S. House of Representatives passed a resolution designating March 14 as National Pi Day in an effort to promote math and science education.
What is Pi?
Pi is the symbol for the ratio of the circumference of a circle to its diameter. An irrational and transcendental number that continues infinitely past the decimal, Pi is rounded off to 3.14.
Learn more about Pi.