Copia de Dandelin's theorem in stereo

Autor:Lorenzo Cubeles Blasco, Mathieu Blossier

* Move points A and B to change section of the cone * Spheres are tangent to the plane and to the cone * Move point P on the conic * When the conic is an ellipse, why is MP+PH constant ?

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Steel Chair
bewijs stelling van Pythagoras
Parallelogram Linkage
Untitled
Which Quadrilateral is Which?

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Bisecting Angles in Class
تطابق ض.ز.ض
problem 1,2 kyle
Equilateral Triangle
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Área
Términos
Test de hipótesis
Media Aritmética
Triángulos Equiláteros