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F2_Ch11.2_三角學(邊長與角的關係)
Author:
timothyngyf
GeoGebra
New Resources
兩位數除以一位數（二）
柱體建築師
球體建築師
三位數除以一位數（一）
找出對稱軸
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Symetry
畢氏定理(五移動)
Viviani's curve
沈暐珊 橢圓反射
撒针估算面积实验
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Equilateral Triangles
Histogram
Set Theory
Power Functions
Angles