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

bewijs stelling van Pythagoras
רישום חופשי
အခြေခံ data အခေါ်အဝေါ်များ
Rolling an Equilateral Triangle
Rolling Circles and Polygons

Découvrir des ressources

geogebra #1 fanos
Changing Base 5 to Base 10
Line through (0,0) and (5,3) with variable parts
Dilate from Point with Slider
Dynamic Proofs Without Words

Découvrir des Thèmes

Fonctions Quadratiques
Geometrie Fractale
Pente
Droites
Fonctions en Escalier