If you know the circumference of an object, what's the formula for calculating the diameter? Yeah, I know, but gimmie a break, I'm gettin' old!

Cmdr Don

-- Cmdr Don (donfmwyo@earthlink.net), February 29, 2000

Answers

The circumference divided by Pi = diameter.

-- Homer Beanfang (Bats@inBellfry.com), February 29, 2000.

Hey thanks Homer...geez that was fast! :)

Cmdr Don

-- Cmdr Don (donfmwyo@earthlink.net), February 29, 2000.

Cmdr Don:

According to my World Almanac, to calculate the circumference of a circle you multiply the diameter by pi. Unless my algebra is worse than I think, you would divide the circumference by pi and divide by two to determine the radius. Pi being = to approx 3.14 umpty ump something (it's late, I can' remember the extension.)

-- JCC (wolverine_in_nc@hotmail.com), February 29, 2000.

Homer: My mistake, I misread the question for radius instead of diameter. (Slap forehead, big "Doh!") Also, webtv slow, computer fast. I will try to do better.

-- JCC (Wolverine_in_nc@hotmail.com), February 29, 2000.

The formula provided assumes you are talking about a perfectly round object. But even a battleship has a circumference. The formula might be more complex than for a simple perfect circle.

-- Flint (flintc@mindspring.com), February 29, 2000.

Flint:

Much as I appreciate your role as devils' advocate, (or if you truly disagree), my interpretatin of the question was mathmatical and did not suggest a real world application that would require the consideration of an ellipse or oblong configuration.

-- JCC (wolverine_in_nc@hotmail.com), February 29, 2000.

Kanne Iche fragen sie, wassen sie measurest?

-- Einfragen Gemundts Kennenlernen Mussen (eine@kleine.meine), February 29, 2000.

Jeez... flint.

-- Michael Erskine (Osiris@urbanna.net), February 29, 2000.

I sincerely apologize, I am clearly out of my depth. My linguistic abiities are not up to the challenge.

-- JCC (wolverine_in_nc@hotmail.com), February 29, 2000.

and pi is 22/7

-- Hokie (Hokie_@hotmail.com), February 29, 2000.

The question was, from the circumference, "how do you figure the diameter?" -- not "how do you figure the radius?" The answer, C/pi, was right. C = 2*pi*R gives C = pi*D.

You have to take pi on faith.

-- Tom Carey (tomcarey@mindspring.com), March 01, 2000.

Dontcha just luv this forum? This is great! Thanks for your attention to this most important matter, for you see, I need to know the diameter of my trees in order to apply the proper amount of fertilizer without killing the damned things! Now why would they want you to figure the diameter? Does a guy have any way to measure that? Well, I suppose you could go out there with calipers. Whatever.

Flint, I understand what you're saying, but why would someone want to know the diameter of a battleship? hehehehehehehe

To the German (?) dude...your post was as clear as pi!!!

And to Tom - I reckon we all had better have a lot of faith in pi...there's an awful lot based on it!

Thanks again everyone.

Cmdr Don

-- Cmdr Don (donfmwyo@earthlink.net), March 01, 2000.

I just eyeball 'em.

-- Squirrel Hunter (nuts@upina.cellrelaytower), March 01, 2000.