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1060420內接def
Author:
陳正鴻
GeoGebra
New Resources
画直线等分三角形的面积
GeoGebra笔记功能体验课件
四邉形 (四年級) 教師版
球体的体积推导（优化版）
【案例】2018年全国1卷理科12题
Discover Resources
deductive geometry
動畫
Name the prism 2
Ex. 10C Q.8b
椭圆的定义
Discover Topics
Plane Figures or Shapes
Special Points
Rotation
Sequences and Series
Cylinder