Importance of the number 5

Yes but if you have a circumference of 10 don't you divide this by the 4 points of two symmetric lines in your circle to get a diameter.

I just want to affirm phinds' words and stress that no one is trying to give you a hard time. We are merely trying to speak in the same language.

And you really must forgive me, for I am too dumb to understand. So please, let us try and understand each other.

You say that a circle is perfectly symmetrical. I can agree with this, for any line that I can draw through the center of the circle cuts the circle into two identical pieces.

I cannot, however agree to your statement that 0 through 10 behave in perfect symmetry as well. And for this I apologize. But please if you will, try and answer my questions so that I may learn.

First, I do not know which numbers between 0 and 10 you refer to. Are you talking about just the whole numbers between 0 and 10? Such as 0, 1, 2, ...

Or are you talking about all the numbers, rational and irrational alike?

Secondly, as I cannot draw a line through numbers, I fail to see symmetry in the numbers 0 through 10. Can you please tell me in what way those numbers are symmetric?

Well if you only look at the whole numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 everybody sees that 5 is the halfway mark. But what I wanted to show is that if you stop at the halfway mark and put 10, 9, 8, 7, 6 there you are basicly showing what a circle looks like. Which is symmetry in another way. What i mean is it doesnt end up being a square.

Yes but if you have a circumference of 10 don't you divide this by the 4 points of two symmetric lines in your circle to get a diameter.

Oh I think I see what you're saying now. If we have a circumference of 10, and you labelled it as 0-10 around the circle, if we get a diameter going through 0 and 5, we now have a circumference of 5 on one side of the diameter, and a circumference of 5 on the other side. If we do this again at right angles to the first diameter, we'll get a circumference of 2.5 in each of the quadrants (4 pieces to the circle).

This is true, but the length of the diameter does not equal the length of the circumference in each of these sectors, the diameter will be equal to [itex]10/d = \pi[/itex] so [itex]d = 10/pi\approx 3.18[/itex]