Archimedes Approximation of PiThis applet shows how Archimedes used area approximations to estimate the value for pi. Move the slider for r to change the radius of the circle and move the slider for n to change the number sides on the polygons.
What do you notice about the area of the inner polygon compared to the area of the circle? Brett Myrup, 4 December 2013, Created with GeoGebra |