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RE: 2 sided polygon on a sphere
Posted:
Oct 5, 2004 2:33 AM
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Art Mabbot wrote...
"I thought that it was a bigon...."
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Come on Art, I've told you before, you have to let bigons be gone
Pat Ballew
Lakenheath, UK
MathWords http://www.pballew.net/etyindex.html
-----Original Message-----
From: Art Mabbott [mailto://art@mabbott.org]
Sent: Tuesday, October 05, 2004 7:26 AM
To: Ballew, Pat; Mary Krimmel; John
Cc: geometry-puzzles@mathforum.org
Subject: Re: 2 sided polygon on a sphere
I thought that it was a bigon....
On 10/4/04 11:05 PM, "Ballew, Pat" <Pat_Ballew@eu.odedodea.edu> wrote:
> Mary Krimmel wrote, "Is a figure on the surface of a sphere properly
> called a polygon?"
> -------------------
> It is at least according to this definition from
> http://mathworld.wolfram.com/SphericalPolygon.html
>
> "A closed geometric figure on the surface of a sphere which is formed
> by the arcs of great circles. The spherical polygon is a
> generalization of the spherical triangle.
>
>
> Pat Ballew
> Lakenheath, UK
>
> MathWords http://www.pballew.net/etyindex.html
>
>
> -----Original Message-----
> From: owner-geometry-puzzles@mathforum.org
> [mailto://owner-geometry-puzzles@mathforum.org] On Behalf Of Mary
> Krimmel
> Sent: Tuesday, October 05, 2004 6:49 AM
> To: John
> Cc: geometry-puzzles@mathforum.org
> Subject: Re: 2 sided polygon on a sphere
>
> At 05:51 PM 10/4/04 -0400, you [John] wrote:
>> What is the name of a 2 sided polygon on a sphere?
>> It rhymes with moon
>
> I can't tell whether this is a puzzle for the list to enjoy puzzling
> over, or whether it's something you want answered. I doubt that I'm
> spoiling anyone's fun by suggesting that the answer is "lune".
>
> Is a figure on the surface of a sphere properly called a polygon? I
> don't know the answer, but would like to. Anyone?
>
>
>
>
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