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电子表格建点
Author:
DongHai Zhang
在电子表格的单元格中输入坐标
GeoGebra
New Resources
四邉形 (四年級) 教師版
柱體建築師
畫出對稱圖形
球體建築師
兩組對邊相等的四邊形
Discover Resources
公切線的條數
triangle
Geometry Exercises
square & Triangle
少了一個質數One less prime number
Discover Topics
Prism
Rational Numbers
Complex Numbers
Geometric Mean
Linear Programming or Linear Optimization