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几何模版:类倍长中线的应用
Author:
lansesorry
GeoGebra
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斐波那契螺旋弧线(表格法)
平行線的判定
撒针估算面积实验
龙形曲线-分形龙2
常见四边形是否是双心四边形
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testokokok
畢氏定理
man1
奠基
百變火柴
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Multiplication
Polygons
Probability
Integers
Scalene Triangles