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平行1
Author:
Hui Sir
GeoGebra
New Resources
兩位數加法
錐體建築師
四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等和有直角的四邊形
Discover Resources
練習 - 逆時針旋轉（三角形）
模擬3D空間物件：空間坐標軸的建立
Integer
GGB2
作垂线或平行线
Discover Topics
Trigonometry
General Quadrilateral
Equations
Poisson Distribution
Pyramid