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Difference between revisions of "Radius"

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The '''radius''' of a [[circle]] is the distance from the center to any point on the circle.  Identical definitions hold for the [[sphere]] and [[hypersphere]].
 
The '''radius''' of a [[circle]] is the distance from the center to any point on the circle.  Identical definitions hold for the [[sphere]] and [[hypersphere]].
  
[[Image:Radius.gif]]
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<asy>size(100);
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pair O=(0,0), P=dir(30);
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D(unitcircle);
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D(O--P);
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MP("O",D(O),NNW);
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MP("P",D(P),NE);
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MP("r",midpoint(O--P),NNW);</asy>
  
 
== See Also ==
 
== See Also ==

Revision as of 13:30, 16 April 2008

This article is a stub. Help us out by expanding it.

The radius of a circle is the distance from the center to any point on the circle. Identical definitions hold for the sphere and hypersphere.

[asy]size(100); pair O=(0,0), P=dir(30); D(unitcircle); D(O--P); MP("O",D(O),NNW); MP("P",D(P),NE); MP("r",midpoint(O--P),NNW);[/asy]

See Also

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