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March 14th, 2013, 03:02 AM   #1
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what number I should use for the cicumference of a circle

The diameter fits into a circle 3 times approx(3.14). This number is infinite but rounded off.


Thus, for any circle, if you divide the circumference by the diameter you get a number close to pi; are there any picture example of this, as I would like to try this method?

The number for the circumference, is that "360" or is that incorrect is another number ???
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March 14th, 2013, 03:48 AM   #2
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Re: what number I should use for the cicumference of a circl

360 is the number of DEGREES in ANY circle. It is independent of the circumference.
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March 14th, 2013, 07:56 AM   #3
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Re: what number I should use for the cicumference of a circl

Quote:
Originally Posted by hansolo
The diameter fits into a circle 3 times approx(3.14). This number is infinite but rounded off.
Thus, for any circle, if you divide the circumference by the diameter you get a number close to pi;
are there any picture example of this, as I would like to try this method?
The number for the circumference, is that "360" or is that incorrect is another number ???
Hard to tell what you're asking Hans.
circumference = pi * diameter
so:
pi = circumference / diameter
This'll give you whatever was originally used as pi's value.
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March 14th, 2013, 07:59 AM   #4
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An angle of 2? radians is the same as one of 360. Hence the two are interchangeable, but it's usually convenient in a given context to use one form and stick to it.
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