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Properties of a Parallelogram
Author:
Lttcmooc
GeoGebra
New Resources
柱體建築師
拼砌四邊形
畫出對稱圖形
兩位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
孔雀
優良作品2(薇如)
ROC國徽1060310
各種四邊形
包含除法（整數或分數 ÷ 分數）的副本
Discover Topics
Upper and Lower Sum or Riemann Sum
Perimeter
Arithmetic Operations
Complex Numbers
Arithmetic Mean