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The radius of a circle or sphere is the distance from the center of the figure to the outer edge (or surface.)
This definition actually holds in  dimensions; so 4th and 5th and  -dimensional “spheres” have radii. Since a circle is really a 2-dimensional sphere, its “radius” is merely an instance of the general definition.
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"radius" is owned by akrowne.
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(view preamble)
See Also: diameter
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circle, sphere, radius |
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Cross-references: radii, dimensions, surface, edge, outer, center, distance, sphere, circle
There are 54 references to this entry.
This is version 2 of radius, born on 2002-02-16, modified 2002-02-16.
Object id is 2006, canonical name is Radius.
Accessed 6100 times total.
Classification:
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Pending Errata and Addenda
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