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Author:
Lin Ching Chieh
GeoGebra
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兩組對邊相等的四邊形
拼砌四邊形
第八周作业
【案例】2013年安徽高考15题
【案例】圆柱体内放置一个大球六个小球
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HELLO
三角測量
圓的外切圓
雙曲面Hyperboloid
三角函数的变换
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Volume
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