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Author:Bennie Liu

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判斷球體
球体的体积推导（优化版）
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
第八周作业

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费马点
HKMO 2013 Question 3 Demonstration (Geometric Construction)
畢氏定理2
不規則鑲嵌無背景楊靜宜
Copy of Wave Interference

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Plane Figures or Shapes
Parallelogram
Cube
Intersection
Geometric Mean

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