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数一数
Author:
玖数
数一数
GeoGebra
New Resources
四邊形的特性
畫出對稱圖形
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
Discover Resources
Quiz on Addition and Subtraction of Directed Numbers (1) 有向數加減測驗(1)
做過圓外兩點的一圓並與另一圓相切
Version 3
不規則圖形的周界(intro)
Dodecahedron
Discover Topics
Pythagoras or Pythagorean Theorem
Fractal Geometry
Parametric Curves
Centroid or Barycenter
Rectangle