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polygon(first upload)
Author:
mingyi
GeoGebra
New Resources
錐體建築師
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
sanjiaohanshu
球體建築師
Discover Resources
以量角器量度角
密鋪8
平行四邊形面積
利用对称求线段和最值（移动端）的副本
分數乘法列式練習
Discover Topics
Symmetry
Median Value
Translation
Right Triangles
Inequalities