what if you divide circumference by diameter and don't get pi ? What does that mean about the circle (because today i got numbers that were exactly over pi and some were even under)?

Today, March 14, at 1:59 was a very special time

Joke: ??

A mathematician, a physicist, and an engineer are all given identical
rubber balls and told to find the volume. They are given anything they
want to measure it, and have all the time they need.
The mathematician
pulls out a measuring tape and records the circumference. He then
divides by two times pi to get the radius, cubes that, multiplies by pi
again, and then multiplies by four-thirds and thereby calculates the
volume.

The physicist gets a bucket of water, places 1.00000 gallons of
water in the bucket, drops in the ball, and measures the displacement
to six significant figures.

And the engineer? He writes down the serial
number of the ball, and looks it up.

http://math-fail.com/2010/03/pi-day-jokes.html

If you divide the circumference of a circle by its diameter and the result is not exactly equal to pi, it can indicate a couple of possibilities:

1. Accuracy of measurement: Since pi is an irrational number (meaning it cannot be expressed as a fraction), it has an infinite number of decimal places. Hence, it is unlikely to get an exact value for pi when performing calculations in real-world scenarios. If your calculation is slightly different from pi, it could be due to imprecise measurements or rounding errors.

2. Incorrect formula or calculation: It's important to ensure that you are using the correct formula to calculate the circumference and diameter of the circle. The circumference of a circle is given by the formula C = 2πr (where r is the radius), and the diameter is given by the formula D = 2r. If you are using the wrong formulas or making errors in your calculations, the result may not be pi.

In general, if you are getting values that are consistently close to pi (even if not exact), it indicates that your measurements and calculations are reasonably accurate. However, if you are consistently getting values significantly different from pi, it may be worth double-checking your calculations and measurements to ensure accuracy.