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平面鏡多次成像_for_mobile
Author:
陳澤瑩
GeoGebra
New Resources
找出對稱軸
拼砌四邊形
球体的体积推导（优化版）
畫出對稱圖形
判斷球體
Discover Resources
Quadratic Function Calculator 二次函數計算器
正十二面體展開圖
cos(π/n)cos(2π/n)cos(3π/n) ... cos(nπ/n) = ?
f(x)=ax^2
拼出三角形
Discover Topics
Scalene Triangles
Linear Functions
Quadratic Equations
Dilation
Variance