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]

Nouvelles ressources

apec
Position Vector and Derivative Vector
Two Triangle Theorem
Inversión esférica de nudos: el nudo trébol y el nudo ocho
Thales' Intercept Theorem

Découvrir des ressources

Copying Segments & Angles 9/22 - Demetrio Hermosillo
poop
Shot D
G9 Chap 6 similar polygon and area
Two Chords Inside

Découvrir des Thèmes

Loi Normale
Fonction Tangente
Cercle
Moyenne Géométrique
Plans