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繪製平行四邊形
Author:
曾耀輝
GeoGebra
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兩組對邊相等的四邊形
拼砌四邊形
【案例】2013年安徽高考15题
sanjiaohanshu
異分母分數減法
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折射的現象
正弦定理的验证
不規則多邊形塗色
Copy of 平行四邊形
函数作图工具的副本
Discover Topics
Subtraction
Polygons
Definite Integral
Area
Quadrilaterals