Happy pi approximation day! Here's how Archimedes approximated pi to be around 22/7. | Learning Math with Howie Hua

In search of Pi Yes, it’s possible to approximate the value of π (pi) through the method of drawing polygons, a technique that dates back to ancient Greek mathematics, particularly Archimedes. By inscribing and circumscribing regular polygons around a circle, one can calculate their perimeters to establish upper and lower bounds for the circle’s circumference. The perimeter of the inscribed polygon offers a lower estimate, while the perimeter of the circumscribed polygon gives an upper estimate.