Pi - 3.141592653589793238462643383279502884197...

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I saw in Google’s page this cute logo in commemoration of Pi Day.




I didn’t know there was such but now that I did, I checked some details.

Pi Day is celebrated on March 14 or 3.14 being the first three digit of the pi value (3.141592653589793238462643383279502884197…infinite series).

It also coincides with the birthday of Albert Einstein, a famous scientist and mathematician.



Pi is the ratio of the circumference of a circle to its diameter. The distance around a circle is called the circumference. The distance across a circle through the center is called the diameter.


where c is circumference and d is diameter.

So when you order a 16 inches pizza it refers to the diameter. You might want to measure it's circumference by a tape measure but why bother? you can use the equation above and the answer is 50.24 inches (C = 3.14 x 16). Easy right?

Happy Pi Day everyone!



 


Source:  http://scientificblabber.blogspot.com/2010/03/lets-celebrate-pi-day.html