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Congruent (SSS) 5
Author:
Ricky Chan
GeoGebra
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圓的基本性質
异形操场
正方形雪花图案
比較五件物件的重量
撒针估算面积实验
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中間人星星
area 面積3
講義/試卷 函數圖形 (雙函數)
旋轉圓弧
翰林數學_2下_CH4-1_截線與截角的意義
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Expected Value
Conditional Probability
Polygons
Area
Cone