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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
近似值:有效數字
Earth with coastline
兩組對邊相等的四邊形
四邊形的特性
判斷球體
Discover Resources
圆锥的侧面展开图3D动画
过圆上一点作切线,三步
Trapezoid1
Graph of Cosine Function 餘弦方程圖像
三角波傅立葉級數&有效值
Discover Topics
Real Numbers
Cuboid
Linear Regression
Percentages
Surface