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Heron formula
Author:
ralphchen
GeoGebra
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折扣
异形操场
双心四边形
第八周作业3
第八周作业
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Projection
Sequence指令練習(二維4)
Apollonius Problem 10 CCC wiki step 3
拋物線的光線反射 獻給聰哥
拋物線3--平行四邊形法
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Circle
Polynomial Functions
Surface
Angles
Geometric Transformations