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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
長方體平面投影 (Codex版)
Nested spiral octagon
四邉形 (四年級) 教師版
近似值：有效數字
找出對稱軸
Discover Resources
Section Curves (2)
包絡橢圓
Bricks
ikik
圓外切四邊形
Discover Topics
Limits
Ratios
Hyperbola
Vectors 3D (Three-Dimensional)
Secant Line or Secant