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

Celsius ↔ Fahrenheit Converter
Area of a Trapezoid
Sum of Squares: Proof without Words
The Gardener's Circle
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Découvrir des ressources

Trigo Ratios in a Circle
Converses of Theorems on Circle Properties
College Stuff
quarters of a cube
FractionCirclesOnNumberLineMandelbrotSet02

Découvrir des Thèmes

Moyenne Géométrique
Somme de Riemann
Fonctions Affines
Parallélogramme
Mathématiques