A radio transmission tower is 170 feet tall. How long should a guy-wire be if it is to be attached 14 feet from the top and is to make an angle of 32 degree with the ground?
Thank you la~~
收錄日期: 2021-04-25 13:41:44
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https://hk.answers.yahoo.com/question/index?qid=20080408000051KK00682