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Axioms of Solid Geometry. Movie.
 
  • For any plane in space there exist points belonging to that plane and not belonging to it.
  • If two different planes have a common point, they have the common line passing through that point.
  • If two different straight lines have a common point, it is possible to draw one and only one plane through these lines.
  • For any plane the axioms of plane geometry hold true.

A corollary of these axioms is that through three points, which are not in the same line, there can be drawn one and only one plane. The model illustrates the corollary.

 
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