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拼貼動畫
Author:
chen mingchuan
GeoGebra
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四邊形的特性
兩位數加法
【案例】2013年安徽高考15题
兩組對邊相等的四邊形
找出對稱軸
Discover Resources
normal
ggb-fs-b1
體積的量度 4
F2_Ch11.2_三角學(邊長與角的關係)
三角形的三个旁切圆.许兴华数学
Discover Topics
Centroid or Barycenter
Derivative
Root
Correlation
Angles