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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
拼砌四邊形
兩組對邊相等和有直角的四邊形
sanjiaohanshu
兩位數除以一位數(一)
柱體建築師
Discover Resources
樞紐內容
math
內分點遞迴
My GGC-1
双动点变速运动
Discover Topics
Quadratic Functions
Statistics
General Quadrilateral
Normal Distribution
Dilation