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正四面體利用向量座標轉換展開圖
Author:
dodosa1314
面積要固定在0.43才是對的
GeoGebra
New Resources
近似值：有效數字
長方體平面投影 (Codex版)
兩組對邊相等的四邊形
畫出對稱圖形
sanjiaohanshu
Discover Resources
习题，任意三点不在同一直线上的等四个点，最多能作出几个三角形
Escher 階梯 (Penrose Stair)
HW1121505
平面幾何的思考
方块堆叠
Discover Topics
Logarithmic Functions
Percentages
Fractal Geometry
Parametric Curves
Geometric Mean