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Apollonius Problem gergonne 2
Author:
tkyggb
GeoGebra
New Resources
双心四边形
常见四边形是否是双心四边形
斜率的值
圓周公式的應用
比較五件物件的重量
Discover Resources
geo123
時鐘
圓繞圓外
Sine Wave 3D
拋物線4--焦點法