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外凸的正方形
Author:
宋晓燕
GeoGebra
New Resources
錐體建築師
四邊形的特性
兩位數除以一位數（一）
GeoGebra笔记功能体验课件
柱體建築師
Discover Resources
類尺規作圖
The relation between Circular Motion &Simple Harmonic Motion
平移法（三）
正多邊形各邊中點連線所圍成的圖形
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
Discover Topics
Orthocenter
Matrices
Statistics
Sine
Arithmetic Operations