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 —

 
Vrsta materijala
Aktivnost
Oznake
geometry  triangles  trigonometry 
Ciljana skupina (godine)
11 – 14
Jezik
English (United States)
 
 
 
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