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二面角的副本
Author:
xiaoqing xia
,
qianqianhouhou
二面角的概念，拖动A、E点改变半平面
GeoGebra
本课件昆山老季制作 QQ：35266477
New Resources
球体的体积推导（优化版）
畫出對稱圖形
錐體建築師
判斷球體
異分母分數減法
Discover Resources
Add and subtract (binary)
Direct Variation (Different powers of x)
向外延伸的多邊形
到两点距离之积为定值的点的轨迹
質數
Discover Topics
Perimeter
Interest Calculation
Mathematics
Rhombus
Quadratic Equations