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正n星角
Author:
李春培
正n星角
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
直角坐標平面上的旋轉變換
兩位數除以一位數（一）
拼砌四邊形
Discover Resources
quadrilaterals 5
极坐标
Testing
Test
展開圓面積 (講義版)的副本
Discover Topics
Volume
Solids or 3D Shapes
Hypothesis Testing
Logarithm
Cosine