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GeoGebra
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Author:
謝亞茹
GeoGebra
New Resources
拼砌四邊形
找出對稱軸
兩位數加法
球体的体积推导（优化版）
畫出對稱圖形
Discover Resources
funny draw
橢圓螺旋
四次函數
角平分線性質
旋转的圆锥内接锥体.许兴华数学
Discover Topics
Orthocenter
Random Variables
Isosceles Triangles
Square
Binomial Distribution