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waaachen
Author:
陳兪宏
waaachen
GeoGebra
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sanjiaohanshu
兩位數除以一位數(一)
畫出對稱圖形
兩位數除以一位數(二)
兩組對邊相等的四邊形
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季老师的数学实验室
正立方體內皂膜
圓錐(可改底面圓半徑、錐體高)
數播線上201802
长方体切割为小正方体
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Line Segment
General Quadrilateral
Translation
Ellipse
LCM and GCD