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橢圓之極偶 / polarity for ellipse
Author:
XIE Yuheng
GeoGebra
New Resources
球體建築師
畫出對稱圖形
柱體建築師
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
Discover Resources
整數或分數÷分數_ 工作紙（一）_題1b
Pythagorean Theorem Proof with Shearing
正三角形堆垛
線性規劃
Copy of 畫三角形 題1a
Discover Topics
Cylinder
Functions
Geometric Mean
Geometric Transformations
Rhombus