[Robert A Cook PE]

To get the exact value of pi ....

Take a verrrrrrrrrrrry accurate ruler and measure the distance around the crust.

Then just divide by the diameter of the pan.

Unless you're in Canada .... Up there, pi is in metric units.

[dread78645]

Taylor sez:
 pi = 4 * (1/1 - 1/3 + 1/5 -1/7 + 1/9 . . .)

[Ole Okie]

Interestingly enough, the legislature of South Carolina (as I recall the state) once decided that pi was confusing the school kids and was too difficult to remember and interfered with tidy calculations. They therefore passed a law that the value of pi in South Carolina would henceforth be 3.00000.

Unfortunately, those well-meaning souls settled on a number whose square root is also irrational, and would be no simpler to handle than that for a more precise value for pi.

I guess they should have rounded up to 4.000. .