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定周长的正多边形面积变化规律（含圆）
Author:
张英华
Topic:
Area
GeoGebra
New Resources
兩位數加法
sanjiaohanshu
畫出對稱圖形
兩位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
Lagrange
正整數的指數律練習
空間中的平面
臺北區104-2
密鋪7
Discover Topics
Mathematics
Coordinates
Similarity Transformation or Similarity
Unit Circle
Indefinite Integral