Pi Day, celebrated on March 14 each year, honors the mathematical constant π with plenty of deals on sweet and savory pies, ...
March 14 marks National Pi Day, a celebration of the mathematical constant π (pi), which represents the ratio of a circle's ...
Pi, which is the ratio of a circle's circumference to its diameter, is celebrated with its own holiday on March 14.
On March 14, math classes across the country will celebrate Pi Day—a national holiday in honor of the mathematical constant pi, which represents the ratio of a circle’s circumference to its diameter ...