31°56'÷3 22.36°-18°22' 23 - 知识问答

31°56'÷3 22.36°-18°22' 23°23'×3+107°43'÷5

2个回答

31°56'÷3=10°38'40''
22.36°-18°22' =3°59' 36' '
23°23'×3+107°43'÷5=69°69'+(105°+(2*60'+43'))/5
=69°69'+21°+163*60''/5
=90°69'+32'36''
=91°9'+32'36''
=91°41'36''

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