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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
柱體建築師
畫出對稱圖形
四邊形的特性
画直线等分三角形的面积
【案例】2018年全国1卷理科12题
Discover Resources
圓錐曲線軌跡 (1)
Volume_Section
螺旋線
勝者即正義
RLC串聯諧振
Discover Topics
Interest Calculation
Mode
Definite Integral
Linear Programming or Linear Optimization
Polygons