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圓周 (圖形C)
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
兩位數除以一位數(二)
兩位數除以一位數(一)
拼砌四邊形
【案例】圆柱体内放置一个大球六个小球
兩位數加法
Discover Resources
GGB3
黃金矩形
基础知识
三相交流电波形模拟
三个平面两两相交
Discover Topics
Multiplication
Conditional Probability
Upper and Lower Sum or Riemann Sum
Secant Line or Secant
General Quadrilateral