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Copy of 周界
Author:
kristinaliu1357
,
spkwan
GeoGebra
modified by spkwan, uploaded 16 October 2011
GeoGebra
New Resources
画直线等分三角形的面积
第八周作业
三位數除以一位數（二）
錐體建築師
【案例】圆柱体内放置一个大球六个小球
Discover Resources
Quiz on Angles in a Circle 圓內的角：測驗
三角形有向面積
参数曲线
關燈遊戲3x3 Lights Out Game
两次折叠
Discover Topics
Sequences and Series
Special Points
Boxplot
Solids or 3D Shapes
Symmetry