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優良作品5
Author:
Ching-Hui Chou
GeoGebra
New Resources
兩組對邊相等的四邊形
畫出對稱圖形
球体的体积推导
球体的体积推导（优化版）
【案例】2013年安徽高考15题
Discover Resources
Sequence指令練習(圓面積的展開)
生活中的平面圖形關係─相似
Ex.3
纏繞畫
算盘
Discover Topics
Conditional Probability
Cosine
Pythagoras or Pythagorean Theorem
Fractions
Similarity Transformation or Similarity