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GGB報告
Author:
Wolil Io
GeoGebra
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异形操场
常见四边形是否是双心四边形
百分數及其應用
圓的切線方程
双心四边形
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廣義量角器
內外角平分線
三節棍1060317
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乘加挑戰題
Discover Topics
Hyperbola
Sequences and Series
Cosine
Histogram
Cube