### Pi Approximation Day

- Pi Approximation Day – Fun Holiday - TimeAndDate.com
- July 22 is Pi Approximation Day. Also known as Casual Pi Day, the day is dedicated to the mathematical constant pi (π).
- Pi Day - Wikipedia
- Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on ... Pi Approximation Day is observed on July 22 (22/7 in the day/month format), since the fraction 22⁄7 is a common approximation of π, which is ...
- Pi Approximation Day Celebrated July 22, How Much Pi Do ...
- Jul 22, 2012 — You might have observed Pi Day on March 14. It gets its name from 3.14, the first three digits of the ratio of a circle's circumference to its diameter.
- Pi Approximation Day | Holiday | Checkiday.com
- Pi Approximation Day is particularly celebrated in countries that write their dates in the date/month format, where today's date would be written as 22 July or 22/7.
- Pi Day: Why some mathematicians refuse to celebrate 14 March
- Mar 14, 2018 — 14 March is celebrated by some as the most exciting day in mathematics – when the date lines up in the numbers of the famous constant, Pi or ...
- Pi Approximation Day History, Meaning, Significance, other ...
- Jul 21, 2020 — Pi Approximation Day is observed every year on July 22 all around the world. The fraction 22/7 is an approximate value of Pi, and there behind ...