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]

Új anyagok

Dilation + Rotation of Pentagons
Geometric linkage
bewijs stelling van Pythagoras
Midpoint Coordinates
Fraction Subtraction

Anyagok felfedezése

Explore Solving Right Triangles
Umkreis
proof-pt
Углы при параллельных прямых и секущей
Dodecahedron. Vertices 20.
Translation and Reflection

Témák felfedezése

Szinusz
Négyzet
Integrálszámítás
Testek
Parallelogramma