Bisecting a Line Segment with a Ruler Given a Parallel Line
Bisecting a Line Segment with a Ruler Given a Parallel Line
Suppose the segment lies on the line and that a line is parallel to .
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This Demonstration shows how to bisect using only a ruler.
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1. Choose a point not on or .
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2. Let the segments and intersect at points and , respectively.
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3. Let the segments and intersect at point .
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4. Then the line intersects at the midpoint of .
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