Pi Day in 2021

Pi Day Quick Facts - GB 2021

2021 Date14 March 2021
2022 Date14 March 2022

Pi Day

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Pi Day in 2021

Pi Day celebrates the mathematical constant π (pi), 3.141592653... Pi is the ratio of a circle's circumference to its diameter. The circumference of a circle is defined as its arc length while the diameter is defined as the longest chord of the circle.

Top X Posts (formerly Tweets) for Pi Day - in 2021

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