Pie for π Day: 3.14 etc.

by Risa Nye March 14 is π Day. You remember π (Pi) right? (Hint: It’s the ratio of a circle’s circumference to its diameter. For any circle, dividing its circumference by its diameter will give you exactly the same number every time: 3.14159…, π. Last year π enthusiasts were very excited to be able to […]