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圆的面积展开的副本
Author:
hong-z
,
qianqianhouhou
拖动n分圆,拖动展开展开圆,拖动拼图拼成长方形。
GeoGebra
通过上面操作请推导圆的面积公式。
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判斷球體
找出對稱軸
兩位數除以一位數(二)
第八周作业
三位數除以一位數(一)
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線性組合
邊長與三角形 數學教室(1/4)
畢氏定理證明
時鐘與數學
莫比烏斯帶01
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Solids or 3D Shapes
Prism
Exponential Functions
Median Line
Scatter Plot