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17個圓
Author:
潘昜亘
GeoGebra
New Resources
錐體建築師
第八周作业
異分母分數減法
GeoGebra笔记功能体验课件
判斷球體
Discover Resources
斜率 - 概念及定義 (1)
平行四邊形面積教材二
電子幾何條（2014）
三個外切圓
equations of circle 1
Discover Topics
Pythagoras or Pythagorean Theorem
Functions
Ellipse
Trigonometric Functions
Reflection