The relations between pi and sqrt(2)

This is the geometric relation between π and sqrt(2)

In this picture, we can clearly see that the circle's radius is “1”. The side of the pink square is sqrt(2) because 1^2+1^2=c^2, c=sqrt(2). The purple arc on top of sqrt(2) is “π/2”. This picture is a way to calculate π.

To Be Continued