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waaachen
Author:
陳兪宏
圓
GeoGebra
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【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
球体的体积推导
兩位數加法
找出對稱軸
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test geogebra 5.0
JavaScript to Create Slider
square and circle
gjc100a34 兩三角形重疊面積比
Gazing Cow Problem (c)
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Parallelogram
Distributions
Matrices
Pyramid
Percentages