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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רישום חופשי
Parallel lines, Transversals and Segments
General Polar Equation of Conics with Rotation (2)
AI for Math Teachers (prompt examples)
Cartesian Notation of a Vector

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Geometry - Circles Unit
Schwerpunkt1
Angle Bisecters
bisect a segment
Copia de Translation

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Rotation oder Drehung
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Ableitung oder Differentialquotient
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