Hungry for some Pi?

In Math we had been studying our unit in Measurement. We were learning how to measure perimeter and area when....March 14 occurred.

Those of you math geeks know how important March 14 is, it's the day we celebrate Pi. Not the pie you eat, but the mathematical symbol known as Pi.

Since we were figuring out the perimeter of rectangles and squares, why not figure out the perimeter of a circle? When you determine the perimeter of a circle, you determine it's circumference, and that is where Pi comes in. We use Pi to figure out the circumference of a circle.

Pi is one of the coolest numbers because there is no pattern in its number sequence AND it never ends! How cool is that?!? Some people have memorized many of the digits of Pi, some just the first three digits, which are 3.14. Get it? March 4---3/14---3.14!

The number Pi is:
3.141592653589793238462643383279502884197169399375105820974944592307816406286 ...

Notice the dots at the end? It means that the number goes on and on and on.

For the purposes of the math we were working on ( and to make things a little simpler!) we rounded to the number 3.

First we tried to use a regular linear ruler to measure the circumference of a circle, it was pretty tough!

We then used the formula of the diameter of the circle times Pi. Easy, peasy!
So if you have a 9 inch circle across, the circumference would be 27 inches! 9x3=27.

Enjoy Pi day everyone!