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congruent (AAA) 2
Author:
Ricky Chan
GeoGebra
New Resources
畫出對稱圖形
算柱 (兩位數)
兩位數加法
sanjiaohanshu
兩組對邊相等和有直角的四邊形
Discover Resources
用心包裝的禮物
斯坦納-雷米歐司(Steiner-Lehmus)定理證明二
不規則圖形的周界(F)
直角坐標變換：測驗(ALEX CHIK)
旋轉縮小的正方形
Discover Topics
Geometric Distribution
Integral Calculus
Step Functions
Circumcircle or Circumscribed Circle
Line Segment