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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。
New Resources
錐體建築師
直角坐標平面上的旋轉變換
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算柱 (兩位數)
Discover Resources
函數的切線
共軛雙曲線
qr code for symmetry
三角碎形
面积解题
Discover Topics
Hypergeometric Distribution
Boxplot
Upper and Lower Sum or Riemann Sum
Congruence
Exponential Functions