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三角形的三个旁切圆.许兴华数学
Author:
许兴华数学
Topic:
Circle
,
Triangles
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等的四邊形
兩位數加法
三位數除以一位數（一）
GeoGebra笔记功能体验课件
Discover Resources
fold and unflod the cone with geogebra5.0
[問題] x² + 2xy + y² + 5x + ay + b > 0
Geometry: Angles Sum of Triangle (幾何：三角形內角和)
马鞍面旋转
异形操场
Discover Topics
Parallelogram
Surface
Vectors
Exponent
Plane Figures or Shapes