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最小周長
Author:
張丰耘
GeoGebra
New Resources
球體建築師
近似值：有效數字
拼砌四邊形
兩位數除以一位數（一）
畫出對稱圖形
Discover Resources
Equal chords cut off equal arcs in a circle
Copy of 七巧板綜合
兩圓滾動軌跡
旋轉+伸縮正多邊形
轴对称的两点的动画演示.许兴华数学
Discover Topics
Equilateral Triangles
Upper and Lower Sum or Riemann Sum
Sine
Linear Programming or Linear Optimization
Orthocenter