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Re: Mathematics Question
From: Frank Reed CT
Date: 2006 Mar 30, 02:51 EST
From: Frank Reed CT
Date: 2006 Mar 30, 02:51 EST
Robert you wrote: "Given that a segment of a circle is called an "arc", can anyone tell me what its two-dimensional equivalent on a sphere is called? " Just a ditto here; I agree with HP on this. Sounds like you're asking about "solid angle". For example, a nebula seen from Earth may be said to have a diameter measured in minutes of arc or radians (that's arc), or an area measured in square minutes of arc or steradians (that's solid angle). -FER 42.0N 87.7W, or 41.4N 72.1W. www.HistoricalAtlas.com/lunars
