Circle (EntityTopic, 15)

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Revision as of 15:58, 17 June 2007 by Keiji (Talk | contribs)

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Geometry

A circle refers to the surface of a perfectly symmetrical planar object.

Equations

  • Assumption: Circle is centered at the origin.
  • Variables:
r ⇒ radius of circle
  • All points (x, y) that lie on the surface of a circle will satisfy the following equation:
x2 + y2 = r2
total edge length = 2πr
area = πr2
[!x,!y] ⇒ line of length (rcos(πn/2))

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