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"proof" of the triangle sum theorem
Author:
Zawierucha
,
Duane Habecker
This applet shows that the sum of the interior angles for ANY triangle is 180°.
GeoGebra
New Resources
Prism Drawn in 1-Point Perspective
Volume by Disk/Washer around y
Reflection across a line
Locus Related to Descartes' Folium
အခြေခံ data အခေါ်အဝေါ်များ
Discover Resources
Vocabulary: Circles
Animation 113
النسبة والتناسب
Step 10
Discover Topics
Complex Numbers
Linear Functions
Prism
Equilateral Triangles
Terms