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变形的正方形
Author:
梁文红
GeoGebra
New Resources
四邊形的特性
拼砌四邊形
錐體建築師
GeoGebra笔记功能体验课件
三位數除以一位數（一）
Discover Resources
判斷錐體 1
工作紙題2
gjh-g05-00 平方差公式
Gazing Cow Problem (a)
勾股定理介绍及证明
Discover Topics
Conic Sections
Rotation
Optimization Problems
Line Segment
Pyramid