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光圈与正多边形外角和
Author:
赵林
Topic:
Polygons
GeoGebra
New Resources
兩位數除以一位數（二）
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
判斷球體
兩位數加法
Discover Resources
正多邊形滾動
拋物線聖路易拱門
hint
奈格爾點與葛爾崗點互為等距共軛點
三角形分形
Discover Topics
Pyramid
Intersection
Exponential Functions
Rotation
Circumcircle or Circumscribed Circle