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相切圓之圓半徑
Author:
曾慧敏
GeoGebra
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找出對稱軸
畫出對稱圖形
異分母分數減法
球體建築師
四邊形的特性
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數位學習社
ex 4
橢圓旋轉
人教A版3.1.3,空间向量的数量积分配律
靜態幾何錯視圖
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Mathematics
Similar Triangles
Geometric Transformations
Integers
Tangent Line or Tangent