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Author:
Hui Sir
GeoGebra
New Resources
四邊形的特性
兩位數除以一位數（二）
柱體建築師
【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
Discover Resources
Clock24hour
畫三角形 題1a
格子點
Similar triangles in a triangle
正八角錐(旋轉，實體、透視)
Discover Topics
General Quadrilateral
Tangent Line or Tangent
Inequalities
Probability
Trapezium