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雙橢
Author:
Lin Ching Chieh
GeoGebra
New Resources
拼砌四邊形
近似值：有效數字
長方體平面投影 (Codex版)
兩組對邊相等和有直角的四邊形
國旗 (作圖步驟直接餵給 Claude)
Discover Resources
分數乘法 (2012年9月27日更新)
Rotational Symmetry
摸似利萨如图形
结果10以内加法
小六 正方體的展開圖
Discover Topics
Curve Sketching
Triangles
Expected Value
Frequency Distribution
Upper and Lower Sum or Riemann Sum