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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
第八周作业3
平行線的判定
第八周作业2
斐波那契螺旋弧线(表格法-可动态调节)
异形操场
Discover Resources
內切圓滾動更新
正十二面體轉正二十面體
平行1
RLC串聯諧振
翰林數學_2下_CH3-4_扣條
Discover Topics
Combinatorics
Triangles
Sequences and Series
Cylinder
Integral Calculus