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]

Nous materials

z`]]
Model sferyczny - sześcian-ośmiościan
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
seo tool
Trefoil Knot

Descobriu materials

Theorem 14
: Applet for demonstrating Steiner’s theorem for trapezoid
agua_cubo.png
Graffiti done Algebra.
koriecedre - parallelogram
congruent figures3

Descobriu Temes

Punts singulars
Números
Operacions aritmètiques
Hipèrbola
Ortocentre