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Equality of Ratios

Author:Lam Yat Chun

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拼砌四邊形
兩組對邊相等和有直角的四邊形
Fibonacci Clock
兩組對邊相等的四邊形
畫出對稱圖形

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final report
教學－與直線有關的角
拋物線軌跡（內切型）
正20面體展開
拋物面的光學性質

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Optimization Problems
Random Experiments
Hypergeometric Distribution
Tangent Line or Tangent
LCM and GCD

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