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Drawing quadrilaterals on the grid or the pinboard
Author:
Anthony OR 柯志明
GeoGebra
New Resources
四邉形 (四年級) 教師版
第八周作业
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
四邊形的特性
Discover Resources
對稱方波
frog 4
三角函數角度轉換
函数作图工具的副本
交錯級數(Roger B. Nelsen)
Discover Topics
Vectors 3D (Three-Dimensional)
Translation
Arithmetic Operations
Plane Figures or Shapes
Ratios