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

Neuberg's Theorem
bewijs stelling van Pythagoras
z`]]
Prism Drawn in 2-Point Perspective
Tetrahedron String Art

Découvrir des ressources

Unit 11 and 12 Geogebra Sketch
Lineaire transformatie
Sekant blir derivata
Círculo trigonométrico
Related Rates Triangles 2

Découvrir des Thèmes

Symétrie
Mode
Orthocentre
Cercle Circonscrit
Constructions