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優良作品3
Author:
Ching-Hui Chou
GeoGebra
New Resources
兩組對邊相等的四邊形
四邊形的特性
GeoGebra笔记功能体验课件
柱體建築師
找出對稱軸
Discover Resources
動態面積展示
均分除法（整數÷整數）
小時鐘
test04繪本用
动态平衡
Discover Topics
Solids or 3D Shapes
Pie Chart or Circle Chart
Conic Sections
Geometric Mean
Multiplication