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triDyn
Author:
dxdcn
GeoGebra
New Resources
盈利與虧蝕
三角函数 的副本
第八周作业
第三周作业效果演示
活动三：应用性质
Discover Resources
animation for kastin
歐拉圓
正六角柱
週長面積皆相等的不全等三角形
平移圖形後計算面積
Discover Topics
Similar Triangles
Equations
Isosceles Triangles
Square
Calculus