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repetitive squares by excel
Author:
Sheu Anderson
GeoGebra
New Resources
畫出對稱圖形
找出對稱軸
三位數除以一位數（一）
画直线等分三角形的面积
拼砌四邊形
Discover Resources
數字鐘
內切圓半徑證明
哈里斯螺旋 - 框線版 (Harriss Spiral)
中線定理(阿波羅尼奧斯)定理推廣一：斯圖爾(Stewart)定理
學習活動二之二參數與圖形結構的關係
Discover Topics
Optimization Problems
Addition
Pyramid
Rhombus
Square