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焦点弦3
Author:
liu
GeoGebra
New Resources
第八周作业
找出對稱軸
【案例】圆柱体内放置一个大球六个小球
兩位數加法
三位數除以一位數（二）
Discover Resources
整數或分數÷分數_ 工作紙（一）_題1d
斯霍滕(Schooten)定理(與角平分線定理等價)
奈格爾點
第7题
正立方體與平面的截面
Discover Topics
Pythagoras or Pythagorean Theorem
Complex Numbers
Correlation
Probability
Equilateral Triangles