Pi (pronounced pie 🥧) (π) is a value, specifically the ratio of the circumference of a circle to its diameter and is approximately equal to 3.14159.

Did you know that we will never know all the digits of Pi (π) because it is an irrational number. This means that it cannot be written as a fraction.

For more facts about Pi, check out the Pi Day website here.

Further reading/reference:

25 Surprising Facts About Pi (Numbered With Images)

https://byjus.com/maths/value-of-pi/