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]

Novos Materiais

Making New Year's resolutions for 2026
Triangle with 3 Right Angles
Untitled
Reflection across a line
Volume by Shells Around y

Descobrir recursos

Matrice
Problem 110
Incentro
Lim_Floor
Technology Follow Up
Inscribed Angles
rhombus Joe

Explorar Tópicos

Homotetia
Divisão
Integral Definida
Limites
Números Naturais