Pi in the sky

Happy Pi Day!  Today is March 14 = 3.14 = Pi

pi = pie

In honor of this fabulous holiday, I’ll explain a little about Pi in my own words.

The most simple explanation of Pi is the Circumference divided by the Diameter.  All of which will only be used when there is a Circle involved.  Speaking of circles, check out the one below:

pipie

 

Diameter = length of the line represented by cutting the pie in half.

Circumference : Circle :: Perimeter : Square.  Ie. length of the border.

Circumference = the length of the crust.  It’s kind of hard to visualize it when it’s round.  So just take the crust, snip it, and roll it out in a straight line.

pie_crust_circumference

If the diameter of the circle is 1, unroll the pie crust and it equals Pi

Pi-unrolled-720

I don’t think in the BC days they had delicious pie crust (nor peach cobbler), so all they could do is continue to keep proving it with different sized circles.  If you believe the bible is true, then you have to believe in math, and vice versa.  2 Chronicles 4:2 talks about them approximating Pi = 3 while constructing Solomon’s Temple sea of cast metal.  Math back in the BC times had to be exciting.  Archimedes narrowed down 3 1/7 < Pi < 3 10/71.  It is presumed that Zu Chongzhi started with a shape with 24,576 sides to determine his approximation of 355/113!  That’s impressive.

Tonight, I think I’ll celebrate with a Pizza Pie and some Chocolate Silk Pie, yum.

Leave a Reply

Your email address will not be published. Required fields are marked *