3.4: Perpendicular Lines
Definitions:
Perpendicular Bisector - a line perpendicular to a segment a the segments midpoint
Theorems:
1) If two intersecting lines form a linear pair, then the lines are perpendicular
Definitions:
Perpendicular Bisector - a line perpendicular to a segment a the segments midpoint
Theorems:
1) If two intersecting lines form a linear pair, then the lines are perpendicular
2) “Perpendicular Transversal Theorem” - in a plane, if a transversal is perpendicular to the other line, then it is perpendicular to the other line
3) If two coplanar line are perpendicular to the same line, then the two lines are parallel to each other
Examples: