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Lesson 86. Properties of Parallel Lines

ForfatterNorm Prokup

T6-criterion for parallel lines

[bgcolor=orange] If two lines are intersected by a third line, and alternate interior (or exterior) angles are equal, then the original two lines are parallel. [/bgcolor]

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Udforsk emner

  • Division
  • Subtraktion
  • Ligebenede trekanter
  • Regning
  • Tangentlinje eller Tangent
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