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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
小数 的副本
找出對稱軸
球體建築師
柱體建築師
算柱 (兩位數)
Discover Resources
經過相同點的不同週期函數
圓外冪問題
複合棒形圖
幾何板上的等腰梯形
漂亮的摇摆曲线
Discover Topics
Orthocenter
Rectangle
Statistical Characteristics
Right Triangles
Histogram