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Description

Three un-proven facts from geometry:

  1. Any full set of angles on a straight line add to 180°,
  2. The sum of angles of any triangle is 180°, and,
  3. Any two equal sides of an isosceles triangle meet the third in the same angle.
Date 2007-08-04, 2008-02-11
Source en:Image:Three facts for trisecting angles.jpeg
Author en:User:Dino, User:Stannered
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Dino at the English-language Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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Attribution: Dino
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current08:19, 11 February 2008Thumbnail for version as of 08:19, 11 February 2008550 × 243 (11 KB)Stannered{{Information |Description=Three un-proven facts from geometry: # Any full set of angles on a straight line add to 180°, # The sum of angles of any triangle is 180°, ''and'', # Any two equal sides of an isosceles triangle meet the third in the same

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