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Web Results

en.wikipedia.org/wiki/Pi

The number π is a mathematical constant, the ratio of a circle's circumference to
its diameter, ... The symbol

www.angio.net/pi/whypi.html

www.livescience.com/29197-what-is-pi.html

Apr 30, 2013

www.piday.org/learn-about-pi/

www.scientificamerican.com/article/what-is-pi-and-how-did-it/

May 17, 1999

lightyears.blogs.cnn.com/2012/03/13/pi-day-how-3-14-helps-find-other-planets-and-more/

Mar 13, 2012

www.reference.com/math/pi-used-today-732a502158421572

www.mathsisfun.com/numbers/pi.html

all the way around the circle) will be

www.tulsaworld.com/business/fyibusiness/pi-common-in-everyday-life-not-just-dessert/article_d1e06850-b460-5ea6-8417-29bed2386234.html

Mar 14, 2014

wonderopolis.org/wonder/what-is-pi/

The Greek letter π was first

More Info

mathforum.org

www.livescience.com

Aug 9, 2012

www.enchantedlearning.com