Pi Approximation Day 2021

Pi Approximation Day is observed on 22 July reach year to celebrate the usage of the mathematical constant π (pi). Pi Approximation Day is also known as Casual Pi Day.

Daily Current Affairs Quiz 2021

Pi (π) was known and used ancient times approximated for almost 4000 years. The ancient Babylonians also calculated the area of the circle by taking three times the square of its radius which gave the value of pi equals to three.

Archimedes of Syracuse (287–212 BC), one of the greatest mathematicians of the ancient world was the first person to do the calculation of π.