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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
拼砌四邊形
錐體建築師
找出對稱軸
異分母分數減法
判斷球體
Discover Resources
等腰三角形
glt-c02-11 七角柱旋轉
面積 題目2
小单答重庆杨志友公共部分面积
正弦余弦刻度尺
Discover Topics
Fractal Geometry
Differential Calculus
Surface
Solids or 3D Shapes
Function Graph