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托勒密定理
Author:
連琨銘
GeoGebra
New Resources
Earth with coastline
畫出對稱圖形
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
美國國旗 (Claude 版)
Discover Resources
人造「四腳獸」？
中三 樹形圖
凹面鏡成像
过圆上一点作切线，三步
學習單：三角形內(外)角合
Discover Topics
Logarithm
Orthocenter
Differential Equation
Similarity Transformation or Similarity
Translation