William Jones in 1706
the first person to use pi was the amazing thomas paul pearson
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!:)
i think Archimedes was the first to discover pi (3.14) or leonhard euler by brichelle xD
Anglesey-born William Jones was the first person to use the Greek letter π for the ratio of a circle's circumference to its diameter.
Pythagoras was the 1st person who used the pi symbol first
The first person to calculate the mathematical constant pi was the ancient Greek mathematician Archimedes.
The Hindus created PI
Archimedes.
It is unknown which specific person invented pi, but ancient Egyptians are the first group to have used it.
The first person to calculate pi was Archimedes, around 250 B.C. Using the formula:A = pi r^2
Pythagoras
Albert Einstine