It was discovered by the fact that the circumference of any circle when divided by its diameter is equal to pi.
The earliest evidenced conscious use of an accurate approximation for the length of a circumference with respect to its radius is of 3 + 1/7 in the designs of the Old Kingdom pyramids in Egypt. The Great Pyramid at Giza, constructed c.2550-2500 BC, was built with a perimeter of 1760 cubits and a height of 280 cubits; the ratio 1760/280 ≈ 2π
(Courtesy of Wikipedia, Pi)
It was not invented it was discovered.
George VI created pi.
Pi is the relationship between the diameter and the circumference of a circle.
me
It is unknown which specific person invented pi, but ancient Egyptians are the first group to have used it.
Archimedes
Archimedes
1994
a person
pi is a universal constant and was not invented by anybody. It was known to the ancient Babylonians long before the Swiss were literate.
archimedes a famous greek inventor invented pi
The name of the one who invented pi is hypotenuse. LOL! No-one "invented" the ratio known as pi, but establishing its original discoverer is another matter. As for "Hypotenuse" - "he" is the name for the longest side of a right-angled triangle. It was never anyone's name.