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切割任意四邊形再拼砌成矩形
Author:
ho ting chit
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
異分母分數減法
畫出對稱圖形
四邉形 (四年級) 教師版
兩位數加法
Discover Resources
函數切線及法線
Positive angles & Negative angles
GGB2
Sonia and Julie
平方數平方數的副本
Discover Topics
Diagrams
Cuboid
Polynomial Functions
Upper and Lower Sum or Riemann Sum
Definite Integral