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]

Nouvelles ressources

Fractal Tétraèdre. Dilatation -1/2 centre triangles
Graph of Slopes of Tangent Lines
Rule of Sarrus - Determinant of a 3×3 Matrix
רישום חופשי
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Découvrir des ressources

unit 6
Logarithm Graph Investigation
segitiga sama sisi
Untitled
Open Middle: Systems of Linear Equations Exercises

Découvrir des Thèmes

Intervalle de Confiance
Problèmes d'Optimisation
Sphère
Congruence
Intersection