History Of Pi And Zero, Abacus Features And Usage, Decimal And Whole Number Addition With Abacus

Pi (?) History and SignificancePi (?) is the ratio of the circumference of a circle to its diameter that means it is a constant number. For any circle, of any size, I will always be the same. Diameter is the distance measured through the center to the edges of a circle.
Babylonians in the ancient times found the area of a circle by taking three times the radius squared. This gave the value of pi to be pi = 3 and one their stone tablets …