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長方形分割
Author:
Tse Sir
GeoGebra
New Resources
判斷球體
兩位數除以一位數（一）
拼砌四邊形
畫出對稱圖形
兩組對邊相等的四邊形
Discover Resources
三角形數
Properties of a Square
moon
“勾股树”最极易迭代法单晨制作实验16
容量(閱讀不同刻度的量杯)
Discover Topics
Square
Statistical Characteristics
Perimeter
Fractal Geometry
Variance