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]

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Angle Addition: Warm Up Exercises
רישום חופשי
Random Polar Curve (3)
apec
Some random function

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Triangle B
Unit 1, lesson 3 quiz.
ignacio
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Copie de Pantin et parallélisme

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Arithmetic Operations
Algebra
Real Numbers
Multiplication
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