23度32'+72度41'+22.5度=118度43' 这个怎么算?22.5度怎么和那个换算呢?
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23度32'+72度41'+22.5度
=23度32'+72度41'+22度+0.5*60'
=23度32'+72度41'+22度30'
=(23+72+22)度+(32+41+30)'
=117度+103'
=117度+60'+43'
=117度+1度+43'
=118度43' ;
22.5度=22度+0.5度=22度+0.5*60'=22度+30'.
1度=60',1'=60''.
=23度32'+72度41'+22度+0.5*60'
=23度32'+72度41'+22度30'
=(23+72+22)度+(32+41+30)'
=117度+103'
=117度+60'+43'
=117度+1度+43'
=118度43' ;
22.5度=22度+0.5度=22度+0.5*60'=22度+30'.
1度=60',1'=60''.
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