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pi is a symbol that we all use and it looks something like this....
Leonhard Euler
The first person to use pi is the awesome man Archimedes he was the first to compute pi's value accurately! I know this answer and I'm in 5th grade!:)
the first person to use pi was the amazing thomas paul pearson
The Hindus created PI
the ancient Egyptians used pi to build pyramids
William Jones in 1706
Archimedes first used the symbol PI because he was the first one to discover it so he wanted to investigate about it.
i think Archimedes was the first to discover pi (3.14) or leonhard euler by brichelle xD
The Babylonians probably didn't use "pi", as it is a Greek letter and I don't think the civilisations overlapped.
The ancient Babylonians used pi as a number approx 4000 years ago.
Pi is a number that is never ending, but most people only use the first couple of digits. pi = 3.14159265 pi is the ratio of a circles' diameter to its circumference