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同心圓
Author:
施奕瑄
GeoGebra
New Resources
近似值：有效數字
湖南省张毅郴数字教研工作室 logo
Fibonacci Clock
兩組對邊相等的四邊形
算柱 (兩位數)
Discover Resources
菱形有甚麼特性？
直線與圓(直線方程式圖形特性3)
Hyperbolic Spiral
包含除法（整數或分數 ÷ 分數）
畫三角形 題1a 的複本
Discover Topics
Parallelogram
Isosceles Triangles
Plane Figures or Shapes
Centroid or Barycenter
Parametric Curves