Pi Day 2024 Celebration In India. 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. Pi day 2024 is celebrated on 14 march every year.
The ratio of the circles will always be pi, which is fractionally 22/7 or 3.14 in the decimal form. Pi is basically used in certain.