Sign in
Search
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Lesson 86. Properties of Parallel Lines
Author:
Norm Prokup
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]
New Resources
Random Polar Curve (1)
z`]]
רישום חופשי
Tracing an Ellipse Using Two Circles
Untitled
Discover Resources
test_puissance
Relation not a Function 2
Prucha-geogebra project
Module 3 improved activity
Total of 1 + 2 + 3 + ....
Uso do Transferidor
Discover Topics
Random Experiments
Distributions
Upper and Lower Sum or Riemann Sum
Power Functions
Coordinates