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時鐘問題
Author:
連琨銘
GeoGebra
New Resources
三位數除以一位數（一）
兩位數除以一位數（二）
祖冲之的期望：内棋与外棋
漂亮的摇摆曲线
平行線的斜率
Discover Resources
Roger Test Draw
把三角形分類
三角柱展開圖
Question 5
光圈与正多边形外角和
Discover Topics
Plane Figures or Shapes
Pythagoras or Pythagorean Theorem
Geometric Distribution
Parallelogram
Hypothesis Testing