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f-10-2-poly3-gph-bac-2&3
Author:
David HUNG
GeoGebra
New Resources
異分母分數減法
兩位數加法
拼砌四邊形
画直线等分三角形的面积
兩組對邊相等的四邊形
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等分旋轉
橢圓2--四圓心近似法
圆的面积展开的副本
周长相等，正方形，长方形和正三角形，圆面积大小比较
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Orthocenter
Trapezoid
Cuboid
Exponent
Planes