When is Pi Day?

Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on March 14 (the 3rd month) since 3, 1, and 4 are the first three significant figures of π, and it was first celebrated in the United States. It was founded in 1988 by Larry Shaw, an employee of the San Francisco science museum, the Exploratorium.

Why do we care about Pi Day?

Here’s why we care about pi and its day of celebration, which is March 14. What is pi? Pi is the ratio of the circumference of a circle to its diameter, or approximately 3.14. What is Pi Day? Pi Day occurs on March 14, because the date is written as 3/14 in the United States.

What does Pi mean in math?

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 approximately 3.14159. Pi Day is an annual opportunity for math enthusiasts to recite the infinite digits of Pi, talk to their friends about math, and eat pie.