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]

Nové materiály

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apec
Parallelogram Anatomy
Rolling an Equilateral Triangle
Nikmati Keunggulan Di Bandar Judi Terpercaya

Objevujte materiály

GeoGebra challenge 29/08/2013
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Objevte témata

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Rovnoběžník
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