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兩圓內公切線
Author:
郭逸民
兩圓內公切線
GeoGebra
New Resources
找出對稱軸
画直线等分三角形的面积
第八周作业
兩位數加法
算柱 (兩位數)
Discover Resources
滾動圓周來發現圓周長
拋物線之極偶 / polarity for parabola
量度身高
外接圓的心
標準分解式2
Discover Topics
Kite
Median Line
Geometric Transformations
Cosine
Tangent Line or Tangent