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廣義角的代換(180度加減角度)
Author:
yuchengda
GeoGebra
New Resources
兩位數除以一位數（二）
拼砌四邊形
畫出對稱圖形
柱體建築師
兩組對邊相等的四邊形
Discover Resources
孔明棋 (Peg Solitare)
優良作品2(怡雯)
圓周 (圖形I)
a Geogebra file created by the first pre-service teacher
禪繞畫
Discover Topics
Boxplot
Secant Line or Secant
Pyramid
Function Graph
Random Variables