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Author:
李春培
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GeoGebra
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兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
異分母分數減法
畫出對稱圖形
球体的体积推导
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平行四邊形的面積
Measurement & Classification of Angles 角的量度和分類
根據百分率找數量(二): 例2
雙曲線20160521
線性估計(Linear Approximation)
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Algebra
Vectors 2D (Two-Dimensional)
Division
Fractions
Cone