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

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Line Through Two Points and Slope
bewijs stelling van Pythagoras
Proving Triangles Similar: Multistep Transformations
Parabola - Write the Equation - Practice

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Eigenschap 5
cercletrigonoavecpi24ver3
CCSS TP Algebra I 1.1.1 Example 2
Central Angle & Arc Relation
Design
Project 1.4

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Valeur Médiane
Prisme
Soustraction
Cercle Inscrit ou Circonscrit
Limites