March 14, National Pi Day, honors 3.14 (Ï€) the ratio of the circumference of a circle. Whether you're challenging yourself to find how many decimal placements are actually in Pi (Ï€) or you're eating ...
CHICAGO (WLS) -- March 14th is Pi Day: 3.14. While when most hear "pi" they think of pie or pizza, the day is truly a celebration of mathematics. Pi is the ratio of a circle's circumference to its ...