Add Yahoo as a preferred source to see more of our stories on Google. To refresh your memory, pi is the mathematical constant representing the ratio of a circle's circumference to its diameter. Like ...

PITTSBURGH (KDKA) -- Remember that one time in math class when you said, "I am never going to use this in real life"? Since tomorrow is officially Pi Day, you Know 3-14, or March 14th, we are going to ...

If the students of Hanover High School are rocking out to songs they wrote themselves and wearing T-shirts decorated with a mathematical symbol, it must be Pi Day, an annual celebration of the ...

If you're anything like Ree Drummond, you're no stranger to pie. Pi, on the other hand, can be a bit of a head-scratcher. But whether or not you've memorized its digits, you can still partake in all ...