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正十二面體
Author:
侯杰材
正十二面體
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
sanjiaohanshu
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
近似值：有效數字
Discover Resources
Cube
極值對稱於反曲點
空間旋轉矩陣
銳角三角：sin, cos
高中二年級平面向量的副本
Discover Topics
Logic
Hypothesis Testing
Boxplot
Curve Sketching
Planes