1. Constructions Perpendicular bisector of a line Example
Bisect the line joining A and B A B

2. Example Bisect the line PQ
The line drawn is also known as a locus of all points which are equidistant (equal in distance) from P and Q.

3. 2. Bisecting an angle
Example Bisect the angle given by A A

4. Example
Bisect the angle given by ABC C A B
The line drawn is also known as a locus of all points which are equidistant (equal in distance) from AB and BC

5. 3. Dropping a perpendicular from a point to a line Example
Drop a perpendicular from the point P to the line AB P A B

6. Drop a perpendicular from the point P to the line LM
Example
Drop a perpendicular from the point P to the line LM L P M