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Author:
chen mingchuan
GeoGebra
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拼砌四邊形
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
異分母分數減法
【案例】2013年安徽高考15题
Discover Resources
正七邊形2
Locus: Equidistance From Two Points
題二
杯麵
多边形旋
Discover Topics
Orthocenter
Sequences and Series
Perimeter
Prism
Differential Equation