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dynamics dragon
Author:
赵林
GeoGebra
New Resources
GeoGebra笔记功能体验课件
兩組對邊相等和有直角的四邊形
兩位數加法
兩組對邊相等的四邊形
兩位數除以一位數(一)
Discover Resources
Polygonal numbers
三角柱展開圖
椭圆的定义的副本
面積的量度
两次折叠
Discover Topics
Mathematics
Special Points
Secant Line or Secant
Differential Calculus
Scalene Triangles