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Trisecting angles????

davidtaylor · 2005-12-02 21:52:21

What's the story with trisecting angles with just a straight edge and a compass? I've heard that it is apparently impossible, however i was shown how it can be done...:confused:

02-12-2005 9:52pm

#1

davidtaylor

Closed Accounts Posts: 38 ✭

Join Date: August 2005

Posts: 31

What's the story with trisecting angles with just a straight edge and a compass? I've heard that it is apparently impossible, however i was shown how it can be done...

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Comments

#2 03-12-2005 5:47pm

whyamihere?

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Join Date: October 2005

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it is impossible and has been proven so. check the rules for "straight edge and compass" constructions and you will find that one or more has been broken, they are quite restrictive since the ancient greeks used to do geometry without any sort of coordinate geometry.

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#3 03-12-2005 10:49pm

smiles

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It is impossible with a plain straight edge, but not with a marked one.

http://www.geom.uiuc.edu/docs/forum/angtri/

Fio

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#4 03-12-2005 10:53pm

Pete Doherty

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a fella in my old class done that!! swear to god! he sent it off to some place to get examined if he really was right, my maths teacher sed she didnt see anything wrong with it!!:)

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