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椭圆内切圆链
Author:
孟宝兴
GeoGebra
New Resources
判斷球體
柱體建築師
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
兩位數除以一位數（二）
Discover Resources
ch14 p.30#31
在釘點紙上畫垂直線
STEM 遇上 GeoGebra：陳瑞祺永援中學
Copy of area
circle
Discover Topics
Perimeter
Logarithmic Functions
Ellipse
Geometry
Tangent Line or Tangent