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公切線(配合Dilate指令)
Author:
連琨銘
GeoGebra
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斜率的值
平行線的斜率
圓的基本性質
垂直線的斜率
祖冲之的期望：内棋与外棋
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dse13
Copy of 閱讀鐘面及數字鐘（時和分）
封閉圖
外心
sin(x) 的函數圖形的副本
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Cone
Fractions
Hypothesis Testing
Kite
Similarity Transformation or Similarity