Happy Pi Day 2020! (Video) March 14, 2020 by Lee Hernly Leave a Comment Filed Under: video Tagged With: March 14, Pi Day, VideosPi Day is celebrated on March 14th (3/14) around the world. Pi (Greek letter “π”) is the symbol used in mathematics to represent a constant.

Happy Pi Day! (Video) March 14, 2013 by Lee Hernly Leave a Comment Filed Under: video Tagged With: mathematics, Pi DayHappy Pi Day!