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硬幣繞多邊形面積
Author:
AlexWang
GeoGebra
New Resources
兩組對邊相等的四邊形
找出對稱軸
画直线等分三角形的面积
直角坐標平面上的旋轉變換
第八周作业
Discover Resources
小數乘法
三角形的三角和及外心、內心圓
Closure shape
Compare areas by cutting shapes Q3
刘校安排（1）
Discover Topics
Parabola
Exponent
Hypothesis Testing
Incircle or Inscribed Circle
Matrices