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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。
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New Resources
【案例】2013年安徽高考15题
兩位數加法
四邊形的特性
sanjiaohanshu
兩組對邊相等和有直角的四邊形
Discover Resources
P63-2
Question 3
硬幣繞多邊形面積
圆的面积展开的副本
擲兩個硬幣的機率分布的副本
Discover Topics
Linear Equations
Similarity Transformation or Similarity
Intersection
Arithmetic
Constructions