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Author:
Lin Ching Chieh
GeoGebra
New Resources
兩組對邊相等的四邊形
拼砌四邊形
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
柱體建築師
Discover Resources
有趣的反例
Apollonius Problem gergonne
Random Points on a Function
四邊形內多個四邊型旋轉
椭圆的定义
Discover Topics
Cuboid
General Quadrilateral
Tangent Function
Variance
Planes