Add Yahoo as a preferred source to see more of our stories on Google. Today marks National Pi Day in the United States and around the world. The holiday commemorates a timeless symbol beloved by many ...

It isn't The Pioneer Woman without "pi!" In the baking sense, Ree Drummond is no stranger to the pastry, whether she's whipping up apple pie, pot pie, or Ladd's favorite chocolate pie. One of the best ...

Get ready for a math-themed celebration today, because July 22 marks Pi Approximation Day. On this day, we celebrate all things related to the mathematical constant. Among the many mathematical ...

Pi is denoted by the Greek letter π. It is a mathematical constant and is approximately equal to 3.14159. It is defined as the ratio of a circle's circumference to its diameter. It was first ...

While the infinite digits of the mathematical symbol pi might intimidate some, students at North Hills Christian School find it to be a reason to celebrate. Pi is the ration of a circle’s ...

One of the most important numbers in math might today be named after the Greek letter π or “pi”, but the convention of representing it this way actually doesn’t come from Greece at all. It comes from ...

A man is reflected in a mirror with an inscription reading 'The value of Pi' and its numbers in Vienna, June 26, 2012. ALEXANDER KLEIN/AFP/GettyImages Pi Day is celebrated annually to pay tribute to ...