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Apollonius Problem gergonne 3
Author:
tkyggb
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
畫出對稱圖形
錐體建築師
四邉形 (四年級) 教師版
三位數除以一位數（一）
Discover Resources
形心
指數與對數的對稱性
橢圓關係
美图欣赏-线绳艺术
GeoGebra绘本团队-绘本范例
Discover Topics
Cuboid
Differential Equation
Quadrilaterals
Vectors
Sine