Chapter 3.1: Lines and Planes Flashcards
1
Q
Parallel Lines
A
are co-planar lines that do not intersect.
2
Q
Intersecting Lines
A
are co-planar and have exactly one point in common.
3
Q
Oblique Lines
A
lines are oblique if they intersect and do not form right angles.
4
Q
Skew Lines
A
two lines are skew if they do not lie in the same plane.
5
Q
Thm 3.1 - Transitivity of Parallel Lines
A
if two lines are parallel to the same line, then they are parallel to each other.
6
Q
Thm 3.2 - Property of Perpendicular Lines
A
if two co-planar lines are perpendicular to the same line, then they are parallel to each other.
