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九點圓 的複本
Author:
chen mingchuan
,
Wu Xiao-Ren
三角形的三中點，三垂足，三頂點到垂心中點共圓
GeoGebra
New Resources
Earth with coastline
國旗 (作圖步驟直接餵給 Claude)
判斷球體
兩組對邊相等的四邊形
湖南省张毅郴数字教研工作室 logo
Discover Resources
立體圖
Copy of 劉徽的「割圓術」
立體圖形_截面
謝爾冰司機-正方形
【案例】2018年全国1卷理科12题
Discover Topics
Tangent Line or Tangent
Special Points
Optimization Problems
Equilateral Triangles
Interest Calculation