LEARN MATH STEP BY STEP THROUGH VERY EASY PROCESS

PERPENDICULAR LINES & BISECTOR OF A LINE SEGMENT

__PERPENDICULAR LINES -__

**Two straight lines are called perpendicular lines if they intersect at right angle (90 degrees). In other words, if you have two lines, and they meet in such a way that the angle formed between them is 90 degrees, then those lines are said to be perpendicular.**

**Here's a graphical representation:**

**In the adjoining diagram ∠BOC = a right angle. So the lines AB & CD are perpendicular to each other. Usually it is written as AB ⊥ CD. Here notice that each of ∠BOC, ∠AOC, ∠AOD, or ∠BOD is a right angle.**

__Perpendicular Bisector Of A Line Segment -__

**A line is called a perpendicular bisector of a line segment if it bisects the line segment and is perpendicular to it.**

**In the adjoining diagram, M is the mid point of the line segment AB and ∠BMC = 90⁰. So, the line CD is the perpendicular bisector of the line segment AB.**