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20161223 第10題
Author:
3A516057 練鴻裕
GeoGebra
New Resources
圓的基本性質
常见四边形是否是双心四边形
圓的切線方程
双心四边形
异形操场
Discover Resources
Copy of glt-h02-00-正方形折成三角錐
Copy of 梯形
時鐘
向量分解的副本
手拉手模型
Discover Topics
Right Triangles
Translation
Vectors 2D (Two-Dimensional)
Matrices
Arithmetic