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正七邊形2
Author:
李春培
正七邊形2
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數除以一位數（二）
找出對稱軸
直角坐標平面上的旋轉變換
異分母分數減法
Discover Resources
方格紙上畫平行四邊形3
標準分解式與方根化簡2
Incentre
旋轉長方形
Congruent Triangle (ASA)
Discover Topics
Circumcircle or Circumscribed Circle
Rotation
Matrices
Exponent
Sine