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
Nikmati Keunggulan Di Bandar Judi Terpercaya
Parallel Lines & Related Angles: Quick Reminders
seo tool
AI for worksheet development
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Discover Resources
Congruent Triangles Exploration 5
reflect
Oxford New Century Math 5B Supp. Ex. 10 Q.36
การลบจำนวนเต็ม
Two Periodic Waves
Discover Topics
Median Line
Geometric Transformations
Sequences and Series
Linear Equations
Optimization Problems