In the below question, find the value of the unknown.
S = 180°(n-2) If S = 540°, find n.
我疑難:它有度, 怎樣算?
收錄日期: 2021-04-16 15:34:17
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https://hk.answers.yahoo.com/question/index?qid=20130206000051KK00112