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GeoGebra
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GeoGebra
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GeoGebra
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三垂線
Author:
Wu Xiao-Ren
GeoGebra
New Resources
異分母分數減法
找出對稱軸
球體建築師
畫出對稱圖形
四邊形的特性
Discover Resources
表面積
空間兩直線關係
均分除法（整數÷整數）
拋物線代數性質,光學性質
面积
Discover Topics
Planes
Conditional Probability
Fractions
Bar Chart or Bar Graph
Centroid or Barycenter