Lesson 86. Properties of Parallel Lines

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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רישום חופשי
Reflection = 180° Rotation about a Line
Nikmati Keunggulan Di Bandar Judi Terpercaya
Making New Year's resolutions for 2026

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Refleksi Objek terhadap sembarang persamaan garis
Unit Circle - June 3
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Standard Deviation
Unit Circle
Cylinder
Median Value
Incircle or Inscribed Circle