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Bisect The Segment (Posted on 2005-01-29) Difficulty: 3 of 5
Show how to bisect a line segment with a compass (no straight-edge).

See The Solution Submitted by David Shin    
Rating: 4.0000 (4 votes)

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Solution trick answer | Comment 2 of 8 |

Call the segment AB.

Pick up the paper and poke the point of the compass through point A.  Curve the paper so that point B touches the point of the compass and poke through the paper a second time.  Now you have skewered the paper at A and B.  Now make a sharp crease which will perfectly bisect AB.

  Posted by Larry on 2005-01-30 04:28:17
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