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內外切圓與橢圓雙曲線
Author:
JUNWAYLIANG
GeoGebra
New Resources
判斷球體
柱體建築師
錐體建築師
算柱 (兩位數)
三位數除以一位數（二）
Discover Resources
square construction
動畫
Quiz on Discriminant 判別式：測驗
变化的三角形的外心.许兴华数学
小二 、小三 | 看時間
Discover Topics
Addition
Isosceles Triangles
Circumcircle or Circumscribed Circle
Dilation
Linear Programming or Linear Optimization