Happy Pi Day!

Did you know?

  • Pi is the ratio of a circle's circumference and it's diameter.
  • Pi is irrational — it can't be written as a fraction!
  • The symbol for pi, π, has only been around for 250 years.
  • The Great Pyramid at Giza approximates pi. Its height has the same relationship to the perimeter of its base as the radius of a circle has to its circumference. 
  • Albert Einstein was born on Pi Day, 3/14/1879, in Wurttemberg, Germany!