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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
錐體建築師
第八周作业
兩位數除以一位數(二)
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
Discover Resources
中點軌跡(動點在兩圓上)
HKMO 2008 Question 3 Demonstration (Geometric Construction)
Graph of Sine Function 正弦函數圖像
六年級_截面_錐體_多邊形
玖数小学数学
Discover Topics
Probability
Integral Calculus
Terms
Circumcircle or Circumscribed Circle
Centroid or Barycenter