Happy Pi Day! What you might not know about the number that never ends

 

 

It’s not every day the world breaks out desserts to celebrate math, but March 14, or 3.14, is no ordinary day.

That’s right, it’s International Pi Day.

Even if you’re not math savvy, you likely remember learning about pi () in math class. It’s the ratio of a circle’s circumference to its diameter, or 3.14. It’s used to calculate the circumference, diameter and area of a circle, among other things.

While the ratio is simplified to 3.14, so far it has been calculated to more than 22 trillion digits. Pi is believed to be infinite.

To help you enjoy the pi-inspired revelry, here are some nifty facts about 3.14.

 

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