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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
第八周作业
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
判斷球體
美國國旗 (Claude 版)
Discover Resources
二元一次不等式
圖形拼砌
effect of changing data by Mr LO WY
數線
繡曲線02
Discover Topics
Integers
Median Value
Circumcircle or Circumscribed Circle
Linear Programming or Linear Optimization
Difference and Slope