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错觉2 的副本
Author:
王玉霞
GeoGebra
New Resources
球体的体积推导
找出對稱軸
四邉形 (四年級) 教師版
球體建築師
畫出對稱圖形
Discover Resources
限制函數或曲線顯示的範圍
球面上的座標架
Geometry: Angles Sum of Triangle (幾何：三角形內角和)
量角器
量度身高
Discover Topics
Vectors 2D (Two-Dimensional)
Hypergeometric Distribution
Variance
Arithmetic Mean
Confidence Interval