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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
球體建築師
判斷球體
畫出對稱圖形
近似值：有效數字
【案例】2018年全国1卷理科12题
Discover Resources
面积与面积问题
Equal chords and their distances from the centre
指數函數的圖形
some circles
圆链的反演
Discover Topics
Rotation
Terms
Area
Right Triangles
Hypergeometric Distribution