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与两圆都相切的动圆圆心的轨迹
Author:
许兴华数学
Topic:
Conic Sections
GeoGebra
New Resources
兩組對邊相等的四邊形
找出對稱軸
四邉形 (四年級) 教師版
球體建築師
【案例】2018年全国1卷理科12题
Discover Resources
切割圓面積
邊長與三角形(二)
三心:與三角形形狀的關係
複合圖形(五)
鸚鵡螺旋線
Discover Topics
Solids or 3D Shapes
Circumcircle or Circumscribed Circle
Plane Figures or Shapes
Surface
Inequalities