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正方形中的45度摺紙
Author:
鍾元杰
Topic:
Geometry
GeoGebra
New Resources
算柱 (兩位數)
判斷球體
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
GeoGebra笔记功能体验课件
Discover Resources
利用頂點描述二次函數
作業
Area of Triangle
MFS: Rebound 4
基础知识
Discover Topics
Equations
Special Points
Logarithmic Functions
Rotation
Matrices