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圓內弦中點軌跡
Author:
鄭宏偉
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
【案例】圆柱体内放置一个大球六个小球
【案例】2013年安徽高考15题
球体的体积推导(优化版)
判斷球體
Discover Resources
平行四邊形的面積
line equation
三角形重心軌跡(動點在三圓上)
捷徑問題 2
碎形三角形
Discover Topics
Differential Calculus
Exponent
Centroid or Barycenter
Rectangle
Fractal Geometry