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公切線長度的計算
Author:
曾己泉
Topic:
Circle
外公切線與內公切線的描述及計算
GeoGebra
New Resources
球體建築師
直角坐標平面上的旋轉變換
兩位數除以一位數（二）
畫出對稱圖形
錐體建築師
Discover Resources
橢圓軌跡 (4)
乘法公式2
二次函數的圖形-平移版
拼貼動畫
sin的平移與伸縮
Discover Topics
Natural Numbers
Cube
Vectors 3D (Three-Dimensional)
Square
Similarity Transformation or Similarity