Web Results

en.wikipedia.org/wiki/Circle

A

www.reference.com/math/invented-circle-b1c0944e4208f853

Since circular creations appear throughout nature, no man can be credited with
the invention of the

jwilson.coe.uga.edu/emt668/emat6680.f99/Kim/emat6690/instructional unit/circle/Circle/Circle.htm

circlesonly.wordpress.com/category/history-of-circles/

Posts about History of

www.quora.com/Who-is-the-person-who-invented-the-idea-of-Circles

I think that Google+

www.ams.org/samplings/feature-column/fc-2012-02

Archimedes' essay on the `Measurement of a

uncyclopedia.wikia.com/wiki/Circle

The first

www-history.mcs.st-and.ac.uk/Curves/Circle.html

mathforum.org/library/drmath/view/70604.html

Do we know who figured out that pi*r^2 gives the area of a

mathforum.org/library/drmath/view/59075.html

What is the origin/basis of the degree measurement? Why is a

More Info

www.historytoday.com

The history of the constant ratio of the circumference to the diameter of any

usatoday30.usatoday.com

Jun 21, 2002

www.popsci.com

Feb 5, 2002