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平方差
Author:
連琨銘
GeoGebra
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垂直線的斜率
双心四边形
撒针估算面积实验
盈利與虧蝕
百分數及其應用
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tan(α) tan(β) = ?
題3
圓錐展開
B4 4-1 平行線性質延伸 等積變換
探索金字塔高度
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Right Triangles
Median Value
Sine
Quadrilaterals
Logarithm