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GeoGebra
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GeoGebra
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3-6-02
Author:
Tzuen Hsu
GeoGebra
New Resources
球體建築師
四邊形的特性
畫出對稱圖形
画直线等分三角形的面积
兩位數加法
Discover Resources
乘法口诀
長方體
圆锥截面为圆椭圆双曲线抛物线的动画显示.许兴华数学
Protractor-usage
小立方体组合的三视图【鼠标拖动法】
Discover Topics
Complex Numbers
Statistics
Random Experiments
Variance
Vectors 2D (Two-Dimensional)