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 Trapezoid
Area of a Circle Illustrated
Building Figures with Set Areas
Building Triangles with Set Areas
Classifying Triangles

Découvrir des ressources

Central Angle & Arc Relation
abner
incenter
Untitled
Ex 1.2.4

Découvrir des Thèmes

Limites
Equation Différentielle
Fonction Tangente
Loi Normale
Trapézoïde