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Proof1 彭凱揚
Author:
郭亮偉
GeoGebra
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柱體建築師
三位數除以一位數（一）
拼砌四邊形
GeoGebra笔记功能体验课件
四邊形的特性
Discover Resources
中國火柴遊戲二
Symmetric設計對稱圖案(一條對稱軸)斜1
Quiz on Special Lines in Triangles 三角形內的特殊線：測驗
正方形推垛
冰淇淋
Discover Topics
Orthocenter
Straight Lines
Rectangle
Angles
Multiplication