What is the word pi mean?

Answer 1

Pi ( π ) is the ratio of any circle' s circunference to its diameter.

It's an endless number, so usually it is rounded to 3.14.

So, to calculate a circunference's length, you have to do:

(Diameter)x(Pi (consider it as 3.14))=(Perimeter)

Here are some more digits of the Pi:

3.14159265358979323846

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