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例2 22.5 67.5
Author:
谢鹏
GeoGebra
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平行線的斜率
撒针估算面积实验
垂直線的斜率
第八周作业3
折扣
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EnergyMath 2-3 棣美弗定理
相似形的題目
簡易的迷宮
蝴蝶線 butterfly line
circle
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Pyramid
Translation
Kite
Median Value
Rotation