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semicircle

Author:Tzeng, Shyuh-yaur

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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
兩位數加法
畫出對稱圖形
直角坐標平面上的旋轉變換

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圓周角的度數
極線獨立定理 / polar independence theorem
會暫停的指針
单晨答重庆李琳
Congruent Triangle (ASA)

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Median Line
Geometric Mean
Statistical Characteristics
Integral Calculus
Quadratic Equations

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