Sum the interior angles of a triangle must be 180 (version2)

Why the sum the interior angles of a triangle must be 180

 

Splineguy_1

 
教材タイプ
ワークシート
タグ
geometry  triangles  trigonometry 
対象者層(年齢)
11 – 14
言語
English (United States)
 
 
 
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