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

Fourier Lissajous (Mechanical)
Trefoil Knot
Viviani's Curve
Rose Curve
Random Polar Curve (3)

Découvrir des ressources

mass-spring harmonic motion
Function Transformations Practice (a, h, k)
calculimage2
altitudes medians anglebisectors perpendicularbisectors
Circles 4 Activity 2
Right Triangle Trigonometry

Découvrir des Thèmes

Histogramme
Équations Quadratiques
Pythagore ou Théorème de Pythagore
Statistiques
Valeur Attendue