Quick Lamp Base Modeling Demo

Author:Tim Brzezinski

In this screencast, notice how the base is a frustum of an elliptical cone. That is, for this surface, cross sections of planes parallel to the floor and this surface are ellipses.

Quick Silent Demo

New Resources

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Exploring GeoGebra for the First Time
Reflection Across 2 Parallel Lines
အခြေခံ data အခေါ်အဝေါ်များ
Untitled

Discover Resources

demonstration of corresponding angles
changing function 2
Ellipse Lab
Controling the angle tool with key commands
I like Trainz
Function Composition: Dynamic Illustrator (1)
Cyclic quadrilaterals

Discover Topics

Functions
Stochastic Process or Random Process
Arithmetic Operations
Tangent Line or Tangent
Tree Diagrams