A Pi Day like this won't come around for another century. — -- Circle around, math fans. There's a once-in-a-century Pi Day coming this weekend. The day that celebrates the mathematical ...

National Pi Day is held each year on March 14. It honors 3.14 the ratio of the circumference of a circle. You can also get deals on food too.

Washington State University Dr. Universe: What is pi? – Johsan, 10, Alabama Dear Johsan, One of my favorite holidays is Pi Day. On March 14, people who love the math constant called pi celebrate ...

Let’s see how close we can get to pi by drawing a circle. Here's how this will work. You draw a circle. From that circle, you can determine both the circumference and the radius.

In 1880, the German mathematician Ferdinand von Lindermann proved that pi is a transcendental number and that squaring a circle is impossible under the constraints of Euclidean geometry.

Saturday is the day when love of math and a hankering for pastry come full circle. It's Pi Day, a once-in-a-year calendar date that this time squares the fun with a once-in-a-century twist.

Hands-on projects are great learning tools for kids, especially when they involve the word ‘secret’. I can’t think of a better way to celebrate Pi Day (March 14 or “3.14”) with kids than ...