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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
柱體建築師
四邉形 (四年級) 教師版
錐體建築師
兩組對邊相等和有直角的四邊形
異分母分數減法
Discover Resources
Parallel lines (angle of inclination and slope) v2
Diagram 1
基華小學 GeoGebra 幾何創作室 第 2 節
Copy of 正多边形内接迭代
用GGB做遊戲 Math Games By GGB
Discover Topics
Combinatorics
Random Variables
Parametric Curves
Scalene Triangles
Cuboid