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Dandelin's theorem in stereo
Author:
Mathieu Blossier
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 ?
GeoGebra
New Resources
從邊長辨認四邊形
apec
bewijs stelling van Pythagoras
MC #2
畫三角形
Discover Resources
Ribbon Activity
بناء مثلث2
การบวกจำนวนเต็มบวกกับจำนวนเต็มลบ
Quadrilateral Investigation
EJ_triangle
Discover Topics
Variance
Linear Programming or Linear Optimization
Interest Calculation
Distributions
Inequalities