Dandelin's theorem in stereo

Topic:Cone

* 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

Average Distance
Triangle Flexer
Circles - Relative Positions
Graphical solution of ax² + bx + c = k
Level Curves

Discover Resources

GEOGEBRA PROJECT ONE FINISHED
Exploration23c
pg 626 #2
Unit distances in the regular heptagon
Paralelepipedo

Discover Topics

Standard Deviation
Rotation
Symmetry
Reflection
Pie Chart or Circle Chart