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圆的面积展开的副本
Author:
chy198
,
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。
New Resources
判斷球體
兩組對邊相等的四邊形
四邊形的特性
直角坐標平面上的旋轉變換
錐體建築師
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waaachen
圓錐截痕
Copy of 方格紙上畫四邊形
立體圖形的截面
Cycloid
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