Happy Pi Day!

Pi : the ratio of the circumference to the diameter of a circle

approximately equal to 3.14159265358979323846...

1: 2: 3:

4: 5: 6:

7: 8: 9:

10: 11: 12:

So Happy March 14th .... a.k.a Pi Day! Isn't circumference lovely.

1. fresh pi
2. pi collage
3. pi swirl
4. pi plushies (via)
5. apple pi (via)
6. pot pi
7. Harn n' Phirm
8. close pi
9. pi pencils (via)
10. Pie pi
11. iced pi
12. written pi