20 Feb 15
Originally posted by wolfgang59yes ..the Greeks basically kept increasing the number of sides on a polygon to produce a circle, and used trig to calculate its perimeter, which eventually limited to a circle's circumference. Fiendishly clever.
Knowing that there is a constant ratio between radius and circumference
has been known for millennia. Egyptians, Indians, Chinese etc.
The approximation of 3 was used by many (in the bible?)
I think the reeks squeezed a circle between 2 polygons to get a good value.
Presumably that method could be used to get an increasingly accurate value
as the sides of the polygon increase?
A similar problem asks 'what is the largest area that you can 'fence off' with, say, 100m of rope. The answer is a circle
05 Mar 15
Originally posted by st dominics preview@Pianoman1
Christ, you are totally desperate to post , arent you??
Pi day in Yankee USA. Not over here
Joined 09 May '08
Country: England.
