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平行四邊形有甚麼特性？
Author:
Anthony OR 柯志明
Topic:
Parallelogram
English version:
http://ggbtu.be/m79826
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
判斷球體
錐體建築師
四邉形 (四年級) 教師版
Discover Resources
判斷球體 6
對稱圖
Copy of smps perimeter
Rolling Circle
面積
Discover Topics
Definite Integral
Vectors 2D (Two-Dimensional)
Conic Sections
Perimeter
Geometric Mean