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Incircle, Excircle, and Dandelin Spheres
Autor:
Steve Phelps
Tema:
Esfera
In the plane, the excircle and incircle are tangent to a side of the triangle. These points of tangency are the foci of an ellipse formed by
Dandelin Spheres
.
GeoGebra
Nuevos recursos
Rotating Points (Optical Illusion)
Isosceles Triangle: Quick Construction
Supplementary Angles
A retro cityscape with mathematics
Introduction
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Ellipse in box
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Vector Activity
M2L5E3
Tronco de pirámide (*)
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Función potencial
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Ecuación diferencial