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]

Nuevos recursos

Other Variations of Cosine
Circumference of a unit circle
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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Descubrir recursos

kathrynp2
Matrices and linear transformations
Housing Simulation
Angry Birds 2: Modelling Quadratics
Definition of an Ellipse
Practice - Copy an Angle

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Triángulos Escalenos
Límites
Diagramas
Vectores 3D (tres dimensiones)
Traslación