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正n凸多邊形旋轉對稱／反射對稱
Author:
lamanleung
GeoGebra
New Resources
兩位數除以一位數（一）
兩位數加法
三位數除以一位數（一）
拼砌四邊形
找出對稱軸
Discover Resources
Drag the red dots, see the area ratio of EHFG to ABCD
Exponential graph
軌跡圖
描点法画三角函数图像
一个三棱锥的绘图案例
Discover Topics
Parabola
Secant Line or Secant
Inequalities
Hypothesis Testing
Angles