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

Area of a Circle Illustrated
רישום חופשי
bewijs stelling van Pythagoras
Mondrian's Puzzle
Regular Polygons and Equivalent Triangles

Découvrir des ressources

Triangle on parallel lines (w/ solution)
TES4
Circle Theorem 2
honour_1

Découvrir des Thèmes

Fonctions définies par Morceaux
Équations Quadratiques
Continuité
Valeur Attendue
Homothétie