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

Linear Combination of Vectors
Writing and Graphing Proportional Relationships (k>0)
Rovnoběžnost rovin
Odd Function Explorer
繪畫垂直線

Découvrir des ressources

Areas of Polar Graphs 1.1
Triangular Prism
Graph Transformations
წირის მობრუნება ღერძის გარშემო და სივრცული ზედაპირის მიღება.
Parabola (Focus / Directrix)

Découvrir des Thèmes

Racine
Rapports
Théorie des Ensembles
Multiplication
Calcul Différentiel