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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/unesp/369925
Title: 
The sum of the interior angles of a triangle equals 180 degrees by paper folding
Author(s): 
Corcoran, Sean G.
Language: 
eng
Description: 
  • Ensino Médio::Matemática
  • In high school geometry, various manipulatives (in class demonstrations, etc.) are used to show that the sum of the interior angles of a triangle equals 180 degrees. One simple example is to have the students cut off the three angles of a paper triangle and then rearrange these so that they all share a common vertex. The result is a visual proof that the sum is 180 degrees. This Demonstration uses paper folding to show the result
Issue Date: 
  • 2010
  • 14-Apr-2010
  • 18-Mar-2013
  • 18-Mar-2013
  • 18-Mar-2013
Publisher: 
Wolfram demonstrations project
Keywords: 
  • Educação Básica::Ensino Médio::Matemática::Geometria
  • Geometria
Notes: 
Esta animação indica o que se deve fazer com os ângulos de um triângulo, em algumas situações, para visualizar que sua soma é 180º
Credits: 
This demonstration needs the "MathematicaPlayer.exe" to run. Find it in http://objetoseducacionais2.mec.gov.br/handle/mec/4737
Source: 
http://objetoseducacionais2.mec.gov.br/handle/mec/22911
URI: 
http://acervodigital.unesp.br/handle/unesp/369925
Rights: 
Demonstrations freeware using MathematicaPlayer
Type: 
outro
Appears in Collections:MEC - Objetos Educacionais (BIOE) - OE

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