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正多边形
Author:
浅蓝色
GeoGebra
New Resources
斐波那契螺旋弧线（表格法）
常见四边形是否是双心四边形
第三周作业效果演示
科赫雪花
平行線的判定
Discover Resources
畫三角形 題2d
函數圖形
congruent activity
Copy of 分數比較
小船平移2
Discover Topics
Upper and Lower Sum or Riemann Sum
Piecewise Functions
Angles
Equations
Incircle or Inscribed Circle