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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
找出對稱軸
画直线等分三角形的面积
拼砌四邊形
柱體建築師
直角坐標平面上的旋轉變換
Discover Resources
利用頂點描述二次函數
初中九年级数学期中考试试题
Torus
quadrilaterals 5
平面
Discover Topics
Logarithm
Power Functions
Equilateral Triangles
Congruence
Cube