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PTAG theorem
Author:
s10455273@thjh.tp.edu.tw
GeoGebra
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正方形雪花图案
撒针估算面积实验
活动三：应用性质
双心四边形
科赫雪花
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大樂透開獎機(由小號到大號)
畢氏定理
簡易的迷宮
三角函數的繪圖2
同位角---不平行綫
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Line Segment
Probability
Numbers
Rhombus
Similar Triangles