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重心
Author:
cherry910502
GeoGebra
New Resources
四邊形的特性
找出對稱軸
GeoGebra笔记功能体验课件
第八周作业
三位數除以一位數（一）
Discover Resources
Task 4 Square
圓柱體與長方形的關係
活動所需時間計算機 (24小時報時制)
circle
時鐘
Discover Topics
Pyramid
Triangles
Linear Regression
Orthocenter
Trigonometry