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椭圆的定义
Author:
jiachun xiong
GeoGebra
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第八周作业
兩組對邊相等的四邊形
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數（二）
GeoGebra笔记功能体验课件
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一元一次不等式圖形
給錐體一個名字 4
拋物線與直線的交點
製作對稱圖形 level 2
求直角三角形的斜邊
Discover Topics
General Quadrilateral
Tangent Line or Tangent
Constructions
Rectangle
Vectors 3D (Three-Dimensional)