Archimedes calculated pi with simple shapes
Ancient Greek mathematician Archimedes ingeniously approximated pi over 2,000 years ago by "squeezing" a circle between polygons, a method still influencing calculations today.
Over 2,000 years ago, the Greek mathematician Archimedes found a remarkably accurate way to estimate pi, the ratio of a circle's circumference to its diameter. Without modern tools, he drew polygons inside and outside a circle, starting with a hexagon. By repeatedly doubling the number of sides, up to 96, he effectively "squeezed" the circle, getting closer and closer to its true value.
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