Proving that a triangle has 180 degrees

This is designed to prove that the sum of the interior angles of a triangle add up to 180 degrees.
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johnharrington0 —

 
Resource Type
Activity
Tags
180  sum  triangle 
Target Group (Age)
11 – 14
Language
English (United Kingdom)
 
 
GeoGebra version
4.4
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1102
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License
CC-BY-SA, GeoGebra Terms of Use
 
 
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