Parallel and Perpendicular Lines: Review and Examples -

If two lines intersect to form a linear pair of congruent angles, the lines are therefore perpendicular Congruent angles are just angles that are equal to

Perpendicular Lines Theorem If two lines intersect to form a linear pair of congruent angles, then the lines are perpendicular line Proof:

perpendicular Perpendicular Look up perpendicular in Wiktionary, the free dictionary Perpendicular is the relationship between two lines which meet at a

perpendicular Perpendicular lines: Always meet at right angles; Have four 90° angles that add up to 360°; Can only be made up of one perpendicular line at a given point