Proof of calculating area and volume

[dextercioby]

Who is misleading people here?

According to you, if circle was just a curve, its area would be zero.

However, try google "area of a circle" and "area of a circumference", and see the difference. If it is not enough, google "area of a disk", too.

I find your arguments to be funny... Sad but true...

The circle is a curve.It has null area.It encloses a plain domain called DISK.

Daniel.

 

[HallsofIvy]

Who is misleading people here?

According to you, if circle was just a curve, its area would be zero.

However, try google "area of a circle" and "area of a circumference", and see the difference. If it is not enough, google "area of a disk", too.

"Circumference" is a number, not a set of points. The correct term for the set of points equi-distant from a given point is "circle" it has a circumference but its area is 0. The correct term for a the set of points bounded by a circle is "disk". It has non-zero area.

I did google on the terms you suggested. Of course, it is common to talk about the "area of a circle" when the strictly correct phrase should be "area of a disk". I notice that the hits on "area of a circumference" (there were only 4 as compared with thousands for "area of a circle" and "area of a disk") are all translations from a non-English source. I suspect that "circumference" is a mistranslation.