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]

Nuove risorse

Conditions for Parallel Lines
WC 2018
Vectors: Addition and Subtraction - The Parallelogram Law
Matrices - Basic Terminology
Erdős's problem #503, n=3

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Najveći zajednički djelitelj
Hon. Pre-Calc Golf Hole
Problem Set 1-2_6-18
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Untitled

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Circonferenza
Simmetrie
Coordinate
Quadrato
Numeri razionali