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椭圆的定义
Author:
梁航宇
GeoGebra
New Resources
找出對稱軸
判斷球體
錐體建築師
兩位數除以一位數（一）
三位數除以一位數（一）
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Question 3
翰林卷第10题
認識半徑
拋物線4--平行四邊形法
展開圓面積 (講義版)的副本
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Mode
Difference and Slope
Incircle or Inscribed Circle
Cylinder
Median Value