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五邊反射
Author:
tammy93217
GeoGebra
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椭圆内切圆链
正方形雪花图案
第八周作业
常见四边形是否是双心四边形
龙形曲线-分形龙2
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凹面鏡成像
test
Sectors 扇形
找规律(数阵与点阵)
公切線的條數 的複本
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Trigonometry
General Quadrilateral
Symmetry
Definite Integral
Distributions