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]

Nieuw didactisch materiaal

Visualizing the Pythagorean Identity with Sine and Cosine
Average Value of a Function
seo tool
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Tetrahedron String Art

Ontdek materiaal

ConstrMediilor.
Distance HW #2
Transversals with Measurements
Gradient of perpendicular lines
Two sliders coarse fine control

Ontdek onderwerpen

Rechthoek
Verzamelingenleer
Schijfdiagram of cirkeldiagram
Continuïteit
Parabool