Pi Day 2024 Article. A freshly decorated key lime pie rests on a counter in a busy bakery kitchen at michele’s pies, wednesday, march 13, 2024, in norwalk, conn. What is pi—and why is there an entire day devoted to it?
Pi (greek letter “π”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its. National pi day is widely celebrated among students, teachers, and science fans, too.