# How to Bisect a Circle?

Circles are common structures in mathematics. Circles can be used to describe many real world objects, such as wheels and meteor impact craters. The mathematics used for circles is called trigonome...
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http://www.wikihow.com/Bisect-a-Circle

## How to Bisect an Angle Using Only a Ruler?

To "bisect" an angle means to split it in half, or to find its middle point. Using only a ruler and pencil, you can easily bisect the angle formed where the end of two line segments meet. This is a...
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http://www.ehow.com/how_6390598_bisect-angle-using-only-ruler.html

## How to Bisect a Line With a Compass and Straightedge?

A compass.When doing straightedge and compass constructions, one of the rules is that a straightedge has no measurement marks (unlike a ruler). So how do you bisect (find the center of) a line and ...
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http://www.wikihow.com/Bisect-a-Line-With-a-Compass-and-Straightedge