# 10 Surprising Pi Day Facts

It’s Pi Day, and well that may seem boring, but it’s actually a really interesting day where we can celebrate the fact that some things in life really are infinite. Anyways, getting a little off-topic. Here are some Pi facts that you probably didn’t know!

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Point 7 has so much to do with pi

Why is there only 8 well now 9 with mine in the comment section so far?

These aren't 10 surprising facts about Pi Day. These are 10 surprising facts about pi itself.

March 14th is my friends birthday, 21 today, go say happy birthday! Google AISIONS to find him easily

@1:36 point 3 is not a protractor – it is a compass –

1. No. π is not an infinite number. It's not even bigger than 4. Also you can never write down all of the digits in the decimal expansion of 1/3 but it's not really hard to know what they're are. It's the same with π.

3. No. You need to know both the diameter and circumference to calculate π. And you can't calculate the circumference with a ruler.

4. You could argue that numbers are not discovered but invented, so this is misleading.

6. Not intuitive but practical.

9. Even worse than 1. I can caluclate pi. It's π. There's nothing to calculate. But if you're talking about formulae then there's also millions of those. Wiki:

https://en.wikipedia.org/wiki/List_of_formulae_involving_π#Formulae_yielding_π

And you can easily find the circumference of a circle. Here's a formula: π*d.

0:04 who the hell write their ones like that?