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勾股数
Author:
杨秀芬
GeoGebra
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双心四边形
圓周公式的應用
球体的体积推导
垂直線的斜率
画直线等分三角形的面积
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利用圓來畫橢圓
層層套疊的四邊形
解聯立方程
量度長度(厘米)
王者荣耀官网
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Addition
Constructions
Histogram
Quadrilaterals
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