Prove the Sum of the Angles of a Triangle is 180 degrees

A proof that the sum of the interior angles of a triangle sum to 180 degrees. (originally by jmorrisuk)

 

Katherine Smith

 
Type de ressources
Activité
Balises
angle  proof-and-exploration  triangle 
Tranche d'âges
13 – 19+
Langue
English
 
 
 
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