Dandelin's theorem

Thème :Cône

* 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 ?

Nouvelles ressources

Building Triangles with Set Areas
Mondrian's Puzzle
အခြေခံ data အခေါ်အဝေါ်များ
Parallelogram Anatomy
Building Parallelograms with Set Areas

Découvrir des ressources

Haff Ellipsograph Nr. 97 (MathsJam2015)
dot plot 1
Net of a Pyramid
Number of Objects - Addition and Subtraction
單利息 / 複利息

Découvrir des Thèmes

Sections Coniques
Arithmétique
Cerf-Volant
Cercle Circonscrit
Boîte à Moustaches