Quick Lamp Base Modeling Demo

作者: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

新资源

Exploring GeoGebra for the First Time
Triangle with 3 Right Angles
Prism Drawn in 1-Point Perspective
Pitfalls of Disk/Washer Method
Volume by Shells Around y

发现资源

Adjacent angles on straight line (3 angles)
Transtormation of y=f(x) by David
Telling Time
GRAFIK FUNGSI SINUS DAN COSINUS
Slope Intercept Form Practice

发现主题

向量
立体图形
平移
二次函数
圆锥曲线