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翰林數學_2下_CH3-1_多邊形的內角和
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翰林數學
GeoGebra
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找出對稱軸
兩組對邊相等和有直角的四邊形
判斷球體
球體建築師
拼砌四邊形
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相似三角形
Bayes' Thm
數學電腦繪圖與解題
圆的面积展开的副本
橢圓幾何性質,光學性質,生活應用
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Matrices
Sequences and Series
Equilateral Triangles
Binomial Distribution
Translation