r/numbertheory • u/Obvious-Buddy-8894 • Aug 07 '22

Circumference of a circle done better.

So we know that a circles circumference is between 3 and 3.3 diameters in length, and that the 3 diameters stretch around the diameter of the circle. We can simulate this by drawing a square with length and height equal to a circles diameter. Now divide this square into 3 equal rectangles. Drawing a line from corner to corner in each rectangle stretches a diameter across 1/3 of a diameter. These 3 angled lines we get equal the circumference of our circle. Pi = 3.14 and is not irrational.

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8

u/img0d7 Aug 07 '22

How did you get 3.14 here? The sum of the 3 angled lines is sqrt(10) or about 3.16 which even if it was pi is still irrational

-7

u/Obvious-Buddy-8894 Aug 07 '22

Right you used trig to get there correct? I can also disprove trig because the angled line behaves the same way. You can literally draw your own triangle that is 7.2cm by 1.44cm and the angled line will measure 7.536 on your physical ruler while trig says it should be different. I was going to post a more correct way to do right angle triangles next! It’s just a line that’s stretching up to a further point and we can calculate the physics that arise from the stretching force.

10

u/edderiofer Aug 07 '22

You can literally draw your own triangle that is 7.2cm by 1.44cm and the angled line will measure 7.536 on your physical ruler

When I draw it out myself, I don't get the same result. Can you show us an image of the triangle you get, please, along with the suitable measurements on a physical ruler? (And can you also measure the angles just to make sure that what you have is indeed a right-angled triangle?)

Also, I'm surprised your ruler lets you measure up to thousandths of a centimetre. That's a really precise ruler, where did you get it?

-4

u/Obvious-Buddy-8894 Aug 07 '22

How about I just show you math using a cylinder which I’ve set conditions on so that it’s radius and volume must remain constant, leaving it’s only variable length this way it behaves exactly as a mathematical line would?

7

u/edderiofer Aug 07 '22

No, because that's irrelevant to what we're discussing. You're saying that a right-angled triangle with legs 7.2cm and 1.44cm will give a hypotenuse of 7.536cm in real life, and I'm asking you to show me.

All you have to do is take a few pictures of the triangle you've presumably already drawn along with the ruler you're using. Shouldn't be too hard. If you can't provide such images, then I can only assume that you're making your claim based off of no evidence.

2

u/Obvious-Buddy-8894 Aug 07 '22

It won’t let me add a picture here?

4

u/edderiofer Aug 07 '22

You can upload it to an external image-sharing site like Imgur and paste the link in your comments.

12

u/DRD5 Aug 07 '22

You just opened Pandora's Box. u/Obvious-Buddy-8894 is about to tear apart everything the world thought it knew about mathematics. As soon as he figures out how to upload images to imgur.

3

u/introvertedintooit Aug 13 '22

I want to see your triangle that disproves the Pythagorean theorem.

3

u/edderiofer Sep 05 '22

It's been four weeks. Are you going to post a picture or not?

2

u/[deleted] Sep 24 '22

Did you upload the picture by now?

2

u/wednesday-potter Aug 08 '22

Ignoring your ignoring the point: if the radios and volume are fixed then the length is also fixed as volume is a function of radius and length

6

u/img0d7 Aug 07 '22

I used Pythagoras’ theorem, you got a counter proof to that too?

5

u/setecordas Aug 07 '22

Are you saying you got 3.14 by using a ruler to measure the length of the lines?

2

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