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正十二面體內接正四面體或內接正六面體
Author:
侯杰材
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
柱體建築師
找出對稱軸
四邊形的特性
Discover Resources
題 7
滑桿動畫
Ex (SAS)
萬花筒
φ的影响
Discover Topics
Arithmetic Mean
Vectors 3D (Three-Dimensional)
Perimeter
Unit Circle
Coordinates