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proof 64 潘研
Author:
郭亮偉
GeoGebra
New Resources
畫出對稱圖形
兩位數除以一位數(二)
判斷球體
三位數除以一位數(二)
兩組對邊相等和有直角的四邊形
Discover Resources
省政信箱
有趣
三角學
中線定理(阿波羅尼奧斯)定理
空間線性組合
Discover Topics
Incircle or Inscribed Circle
Tree Diagrams
Parametric Curves
Orthocenter
Subtraction