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]

Nye Materialer

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Limaçons
The Geometry of the Coefficients of a Quadratic Function

Opdag Ressourcer

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Udforsk emner

Division
Subtraktion
Ligebenede trekanter
Regning
Tangentlinje eller Tangent