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变形的正方形
Author:
梁文红
GeoGebra
New Resources
算柱 (兩位數)
判斷球體
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
start and end clock face
軌跡 直線 (與兩平行線等距)
圆内的迭代反射2
拼出三角形的副本
畫三角形 題1b 的複本
Discover Topics
Dilation
Equilateral Triangles
Circle
Confidence Interval
Optimization Problems