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# Perpendicular Bisectors

### Perpendicular Bisectors

A perpendicular bisector is a straight line that cuts through the middle of two points (or a line) at a 90° angle.

A perpendicular bisector is a straight line that cuts through the middle of two points (or a line) at a $90\degree$ angle.

We can construct the perpendicular bisector using a ruler and compasses.

Always ensure you use the correct equipment, you will always need a sharp pencil.

How could we describe the circle geometry method to draw a perpendicular bisector?

When you follow the method as described, you will have the circles drawn on your diagram, which you may think we don't need anymore.

In an exam, the examiner is looking for these **construction lines** so they can see that you have done it correctly.

So **never** erase your construction lines!