How to calculate the value of π?
Answer from Wikipedia : - The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159. (22/7).
Ok, let me come to topic, why they have taken this value 22/7 for calculating the value of pi. (π). Below is the real incident happened in village in Tamilnadu (INDIA).
One Day, one maths teacher is explaining how to calculate the circumference.