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]

새 자료

Untitled
Reflection Across 2 Parallel Lines
Circle Passing Through 3 Points
apec
Making New Year's resolutions for 2026

자료 찾기

Table Saw
Consecutive Interior Angles (SUPPLEMENTARY)
การลบจำนวนเต็ม
two space&time squares
Increasing and Decreasing: IM 7.4.6

주제 찾기

수학
탄젠트 함수
작도
마름모
적분(미적분학)