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優良作品1
Author:
Ching-Hui Chou
GeoGebra
New Resources
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
拼砌四邊形
畫出對稱圖形
Discover Resources
五邊形與三角形等積
Quiz on Naming of Congruent & Similar Triangles 全等及相似三角形的命名：測驗
思考題
三角柱
对称拼图游戏
Discover Topics
Stochastic Process or Random Process
Area
Optimization Problems
Plane Figures or Shapes
Cosine