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正三角形在长方形边上移动加滚动
Author:
赵林
GeoGebra
New Resources
GeoGebra数学资源(4-8年级)
第八周作业3
盈利與虧蝕
斐波那契螺旋弧线(表格法)
撒针估算面积实验
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直角三角形的三角比
二項分布 (黑板)
glt-h02-01-長方體動態展開圖
折一半
立體圖形
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Binomial Distribution
Orthocenter
Tangent Line or Tangent
Translation
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