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]

Nuevos recursos

Mondrian's Puzzle
Classifying Triangles
Rectangle Construction Template (V2)
Sum of Squares: Proof without Words
Slope Between 2 Points (Phase 2)

Descubrir recursos

DG Study Task 3
clck
Parallel Lines and a Transversal
Triangle Exploration

Descubre temas

Vectores
Raíz
Polígonos
Experimentos aleatorios
Recta Secante o Secante