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圓周 (圖形F)
Author:
Keith Ko
移動右圖中的紅線到左方虛線，就知道它是相等於左圖的哪條線。
GeoGebra
New Resources
GeoGebra笔记功能体验课件
畫出對稱圖形
球体的体积推导（优化版）
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（二）
Discover Resources
Addition of 3 Directed Numbers
優良作品1(昀潔)
Golden Ratio (phi) Collection
Trigonometric Ratios of Any Angle
GeoGebra成像规律的演示
Discover Topics
Geometric Transformations
Symmetry
Power Functions
Trapezoid
Upper and Lower Sum or Riemann Sum