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布丰投针实验
Author:
朱亮
GeoGebra
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四邊形的特性
AI 訓練教室
sanjiaohanshu
近似值：有效數字
國旗 (Claude 版)
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反射原理
增長的圓
Apollonius Problem gergonne 4
幾何作圖動畫示範的副本
垂直線的斜率
Discover Topics
Pythagoras or Pythagorean Theorem
Scalene Triangles
Geometric Transformations
Centroid or Barycenter
Geometry