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

Using Experimental Probability to Estimate π - Monte Carlo Method
Exploring GeoGebra for the First Time
Reflection = 180° Rotation about a Line
Making New Year's resolutions for 2026
Prism Drawn in 1-Point Perspective

Descubrir recursos

true/parallel-lines-ex351.ggb
polygon angle sum
Rational Functions
Right Triangle Drawing
relationship among fractions, decimals and percentages

Descubre temas

Números Complejos
Distribución binomial
Traslación
Conjuntos
Cálculo