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

רישום חופשי
Tangent Plane to a Sphere
bewijs stelling van Pythagoras
Parallel lines, Transversals and Segments
Open Education 2026

Découvrir des ressources

Untitled
Adia's Bangin' Equilateral Triangle
Hoofdstelling H3 (bewijs)
Scale drawing
hex-sq-tr

Découvrir des Thèmes

Vecteurs
Fonction Tangente
Cercle Unité
Somme de Riemann
Surface