Pi Approximation Day 2024 Syllabus. Celebrate pi approximation day on july 22 with a slice of your favorite pie! Pi approximation day is observed on july 22 (22/7 in the day/month date format), since the fraction 22⁄7 is a common approximation of π, which is accurate to two decimal places.
One of them is that there are at least two holidays dedicated to pi: The symbol is a greek letter, and it is used in mathematics to represent.
