Happy Pi Day, the annual celebration of this incredible, mysterious, and irrational mathematical constant. Okay, so Pi — most commonly written as the Greek symbol π — is an essential mathematical ...

It was Pi Day, so Billy Logan and JoNell Thomas brought cherry and apple. Others came with peach and blackberry and key lime, laying them out on folding tables on a perfect Saturday morning in the ...

One of my favorite holidays is Pi Day. On March 14, people who love the math constant called pi celebrate by eating the other kind of pie. Like apple pie, pumpkin pie and even pizza pie. I talked ...

So you have a circle. What is the area of that circle? Surely everyone remembers that the area of a circle is: Where Pi (π) is of course the number and r is the radius of the circle. Where does this ...

Editor's note: A version of this story was published in March 2011. Get ready to roll out some dough, because it's almost Pi Day. What's that, you ask? Think back to geometry class. Pi represents the ...

It is once again Pi Day (March 14—which is like the first digits of pi: 3 and 14). Before getting into this year's celebration of pi, let me just summarize some of the most important things about this ...

Whether its the mathematical constant or the delicious dessert, there are plenty of world records to share when it comes to pi(e). From the world’s biggest pumpkin pie to the longest record of pi — 62 ...