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GeoGebra
GeoGebra Classroom
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五角星定理
Author:
wzxalt
GeoGebra
New Resources
撒针估算面积实验
盈利與虧蝕
异形操场
活动三:应用性质
第八周作业
Discover Resources
工作紙題3
三次曲线
Locus (Segment)
線對稱圖形
基础知识
Discover Topics
Line Segment
Cube
Sine
Numbers
Orthocenter