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earth
Author:
chen mingchuan
GeoGebra
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第八周作业2
小学资源收集
撒针估算面积实验
双心四边形
龙形曲线-分形龙
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直线倾斜角与斜率
Rectangle_02
Thm8.1
立體圓錐與斜切面關係
定周长的正多边形面积变化规律(含圆)
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Similarity Transformation or Similarity
Incircle or Inscribed Circle
Inequalities
Means
Limits