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]

Nuove risorse

bewijs stelling van Pythagoras
Slope Between 2 Points (Phase 2)
Regular Polygons and Equivalent Triangles
Building Figures with Set Areas
Building Parallelograms with Set Areas

Scopri le risorse

Pythagoras
Congruent Segments
Lesson 9.2 Chord Properties 2
Measurement of Rotation
Constructing_A_Perpendicular+Bisector

Scopri gli argomenti

Cubo
Cono
Coordinate
Volume
Calcolo differenziale