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Pi is 3.14 (about), which makes March 14 Pi Day
Show off your Pi clothing There are a variety of clothing pieces and accessories you can wear or purchase, including sweatshirts, hats and shirts. All of these were found at the Boston Science Museum’s gift store, but there are also a variety of online sites that sell Pi related clothing.
Cut your pizza pie with a pi cutter Can you think of a better tool to cut pizza with than a pi cutter?
Get Fido a Pi Day shirt Humans don’t have to be the only ones celebrating Pi Day. Order here. Have a baby too? They can also have some Pi Day fun.
Do pi-themed crossword puzzles On March 14, 2007 the New York Times had a handful of clues that included the pi symbol in their answers to celebrate pi day, the answers to which are pictured above. Mathgoodies.com has its own pi and circle-themed crossword puzzles to do here.
MORE PI DAY CELEBRATION IDEAS from Network World