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黃金矩形
Author:
王廷祐
GeoGebra
New Resources
找出對稱軸
兩位數除以一位數（一）
三位數除以一位數（一）
畫出對稱圖形
四邉形 (四年級) 教師版
Discover Resources
七巧板兔子12月坊
仿生獸
讀磅
http://www.qsir.org/?p=8853
cos, sin 與單位圓
Discover Topics
Hyperbola
Geometry
Standard Deviation
Translation
Power Functions