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第四冊 3-4 大角對大邊
Author:
簡士峻
GeoGebra
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兩組對邊相等的四邊形
四邉形 (四年級) 教師版
畫出對稱圖形
近似值：有效數字
拼砌四邊形
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圓周公式應用題2
二項分配與常態分配圖形的比較
面、面相交
locus wrt two pts on two indep. circle
量角器2
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Differential Calculus
Logarithm
Pyramid
Geometric Mean
Symmetry