1. Happy Pi Day!

2.  It’s the number you get by dividing the distance around the outside of a circle by its diameter. Not just any circle – Every circle!!! What is Pi?

3.  Pi (π) is an irrational number. It continues infinitely without repetition or pattern. The digits go on and on and on……  The first 200 hundred digits are: What is Pi?

4.  The number π is very useful when solving geometry problems involving circles. When Do We Use Pi? Area 2 A = πr 2

5.  The number π is very useful when solving geometry problems involving circles. When Do We Use Pi?

6.  The number π is very useful when solving geometry problems involving circles. When Do We Use Pi?

7.  A pair of Japanese and US computer whizzes, Shigeru Kondo and Alexander Yee, currently hold the record for calculating the most digits of pi – to five trillion decimal places.US  The pair used a desktop computer with 20 external hard disks that cost about $18,000 to build. It took 90 days to make their calculation. Interesting Facts About Pi

8.  Zero is the only digit that does not appear in the first 32 digits of pi.  The millionth digit of pi is 1.  William Jones first gave the Greek letter “π” its current mathematical definition in 1706.  The digit 7 occurs 7 times in the first 99 digits of pi!  The earliest known reference to pi is in a Middle Kingdom papyrus scroll, written around 1650 B.C. by the scribe Ahmes. Interesting Facts About Pi

9.  The current pi memory champion is a retired Japanese engineer Akira Haraguchi, who in 2006 recited 100,000 digits in front of witnesses in Tokyo. The event took nearly 17 hours.Tokyo  The current Guinness-record holder for memorized digits of pi is 70,000, and was achieved by Rajveer Meena (India) at the VIT University, Vellore, India, on 21 March 2015. Rajveer wore a blindfold throughout the entire recall, which took nearly 10 hours. How Many Digits Can You Memorize?

10. Happy Pi Day Song Sing to the tune of Happy Birthday…… Did you know Albert Einstein was born on 3/14/1879 ?

14.  http://www.csmonitor.com/USA/2012/0314/Pi-Day-five- fun-facts-about-3.14/Computers-can-t-solve-it http://www.csmonitor.com/USA/2012/0314/Pi-Day-five- fun-facts-about-3.14/Computers-can-t-solve-it  http://www.piday.org/learn-about-pi/ http://www.piday.org/learn-about-pi/  http://www.slideshare.net/miscellaimeeous/pi-day- powerpoint Resources