# Perpendicular Bisector of a Line

- Author:
- Mathew Purser

## Basic Construction 2

Perpendicular bisectors are lines that are perpendicular to another line at that line's midpoint. Once we learn how to perform this BC we will unlock a new tool that will do this for us! Because we need the midpoint of the line too, we actually get the midpoint of line for free with this construction too!

## Tool Practice

Use the tools provided to bisect line AB, this means find the midpoint then draw a line at a right angle through this point. Remember, we can't guess and constructions have to be precise. Also, once you make your drawing, you should be able to drag A or B and the line will stay a perpendicular bisector. Remember, circles are great ways to draw equal lines.
Try to draw the perpendicular bisector on your own but if you need help, watch the video provided.