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"proof" of the triangle sum theorem
Autor:
Zawierucha
,
Duane Habecker
This applet shows that the sum of the interior angles for ANY triangle is 180°.
GeoGebra
Nuevos recursos
What Do You See? (2)
Perpendicular Lines: Quick Exploration
Linear Equation Graphs: Thin Slice
Congruent Figures
繪畫垂直線
Descubrir recursos
Exploring Distance
Right Triangle
Classifying Triangles
Pythagoras tree Affine 3 for Juan Carlos
Trigonometry and the Unit circle
Descubre temas
Congruencia
Continuidad
Sucesiones y Series
Trapecio
Paralelepípedo