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Author:
Chenwei Chen
GeoGebra
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兩組對邊相等和有直角的四邊形
sanjiaohanshu
畫出對稱圖形
拼砌四邊形
美國國旗 (Codex 版)
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研習講義
Copy of 固定周界的長方形的面積變化
數學傳播39卷4期, 平面幾何公式思考
函數圖形的變換
翰林數學_2下_CH3-1_多邊形的內角和
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Geometric Distribution
Linear Functions
Rotation
Interest Calculation
Diagrams