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平行四邊形
Author:
eyun306
Topic:
Parallelogram
GeoGebra
New Resources
柱體建築師
GeoGebra笔记功能体验课件
三位數除以一位數（一）
四邊形的特性
【案例】2013年安徽高考15题
Discover Resources
菱形
圓例8
旋轉菱形
橢圓2--四圓心近似法
線性變換矩陣（二階）的副本
Discover Topics
Random Variables
Scatter Plot
Interest Calculation
Angles
Plane Figures or Shapes