Copia de Dandelin's theorem in stereo

Author: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 ?

New Resources

Congruent Sides & Angles in △s: Exploration
Perpendicular Lines: Quick Exploration
Function Art 3D - Flower
Slope Illustrator (2)
Odd Function Explorer

Discover Resources

Circles Theorom
النسبة المئوية
Interior angle sum
Polynomial Roller Coaster
What is an Axiomatic System?

Discover Topics

Arithmetic Mean
Hyperbola
Optimization Problems
Tangent Line or Tangent
Circumcircle or Circumscribed Circle