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Author:
chen mingchuan
GeoGebra
New Resources
球體建築師
拼砌四邊形
兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
錐體建築師
Discover Resources
HKCEE 2011 Q17
正四面體對邊向量垂直作圖證明
艾雪鑲嵌2
餘數處理2
畢氏定理 的複本
Discover Topics
Incircle or Inscribed Circle
Standard Deviation
Quadratic Functions
Addition
Reflection