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正十二面體
Author:
侯杰材
正十二面體
GeoGebra
New Resources
Earth with coastline
找出對稱軸
第八周作业
拼砌四邊形
小数 的副本
Discover Resources
Perpendicular lines
Ex5D#4
三角形內角和180度
公倍數與最小公倍數（L.C.M.）
表内乘法
Discover Topics
Circle
Geometric Transformations
Linear Functions
Parametric Curves
Parallelogram