News 9 celebrates Pi Day on March 14, discussing the number pi's significance and inviting viewers to enjoy pie in honor of the day.

Pi Day celebrates the mathematical constant π. First marked in 1988, it became an official US holiday in 2009, encouraging ...

Friday is Pi Day, a national celebration of the mathematical concept, which is the ratio of a circle's circumference to its ...

Pi Day rolls around every year on March 14. It is observed on March 14 because 3, 1, and 4 are the first three significant figures of π, making the date (3/14) a perfect match to honor the ...

Pi Day celebrates curiosity, creativity, and, let’s face it, carbs! Indulge in pies, explore math trivia, or bake ...