Please answer question no. 18.
P.S. the exercise is about cyclic quadrilateral of circle.
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F.5 math about circle
2010-09-19 7:49 pm
回答 (1)
2010-09-19 8:32 pm
收錄日期: 2021-04-13 17:31:32
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https://hk.answers.yahoo.com/question/index?qid=20100919000051KK00610