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proof AAS
Author:
kaho_chee
GeoGebra
New Resources
【案例】2013年安徽高考15题
拼砌四邊形
兩位數除以一位數（一）
畫出對稱圖形
判斷球體
Discover Resources
Tangents from an External Point
指數函數的平移 (3)
環環相扣
圓形移動面積
表面积变化
Discover Topics
Cuboid
Circumcircle or Circumscribed Circle
Secant Line or Secant
Unit Circle
Rational Numbers