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二面角
Author:
qianqianhouhou
二面角的概念，拖动A、E点改变半平面
GeoGebra
New Resources
第八周作业
兩位數加法
【案例】圆柱体内放置一个大球六个小球
直角坐標平面上的旋轉變換
四邊形的特性
Discover Resources
正四角錐
Bearings(方位)
相机快门模拟
拋物線2--焦點法
Copy of 分數比較
Discover Topics
Step Functions
Solids or 3D Shapes
Prism
Right Triangles
Piecewise Functions