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

Average Value
Average Value of a Function
רישום חופשי
Linear Systems + Relationships Between Coefficients and Solutions
Visualizing the Pythagorean Identity with Sine and Cosine

Descubrir recursos

Angle addition formulae
section 2
iteration_triangle
Pentagonal Prism
Equation of a Circle in Center-Radius Form
division

Descubre temas

Histograma
Esfera
Aritmética
Medias
Cubo