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平行四邊形有甚麼特性？
Author:
Anthony OR 柯志明
Topic:
Parallelogram
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
球體建築師
判斷球體
兩位數加法
Discover Resources
方格紙上畫長方形1
創作一個相同周界的封閉平面圖形
hihihi
雙曲線1--焦點法
必修二P101圆柱圆锥圆台
Discover Topics
Solids or 3D Shapes
Centroid or Barycenter
Perimeter
Frequency Distribution
Cone