The book states a proof... which says that the ratio of
circumference/Diameter which this ratio is equal to pi which is the same for all circles...
Ok that obviously make sense noting that circumference = Diameter(pi) which equals circumference/Diameter = pi
They discovered pi by a means of dividing the distance around the circle by the distance across the circle...
how did they find the distance around the circle if they havnt yet discovered the value of pi hence... they wouldn't be able to use the formula c = d(pi)
Did they just meausre with a string or something?