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

Area of a Trapezoid
bewijs stelling van Pythagoras
Regular Polygons and Equivalent Triangles
အခြေခံ data အခေါ်အဝေါ်များ
Building Trapezoids with Set Areas

Découvrir des ressources

Sum of Angles of a Polygon
Transformations!
Rotational Symmetry
Year 9 Mathematics
Untitled

Découvrir des Thèmes

Entiers
Diagrammes
Pyramide
Hyberbole
Histogramme