Since tomorrow is officially Pi Day, you Know 3-14, or March 14th, we are going to use Pi to show how you may have been improperly buying pizza. Yes, math in real life!

It's Pi Day! The ratio of a circle's circumference to its diameter is rounded to 3.14, making March 14 the day to celebrate.

Free pie, lunar eclipse festivities at The Exploratorium’s Pi Day On March 14, celebrate the mathematical awesomeness of 3.14 at San Francisco’s Pier 15.

Pi Day is almost upon us and you'll need more than a pie tin to celebrate properly. Few holidays inspire this many math-based memes and jokes, so get 'em while they're hot... I mean, get 'em while ...