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Author:
Ku, Yin Bon (Albert)
GeoGebra
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三位數除以一位數（二）
兩組對邊相等的四邊形
第八周作业
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
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三角函數圖解
橢圓
角的認識
线性方程组
兩位數除三位數(商>10)
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Real Numbers
Quadratic Functions
Root
Rotation
Similar Triangles