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平行四邊形的特性
Author:
Yip Chi Wai
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
判斷球體
畫出對稱圖形
柱體建築師
算柱 (兩位數)
Discover Resources
表示數線上的位置
題五
滑桿動畫示範-1
等角对等边
将根号数进行迭代（毕氏螺线）
Discover Topics
Perimeter
Difference and Slope
Distributions
Cube
Bar Chart or Bar Graph