180多-27度35分*4= 161度23分/5= 25度24分*5 162度/4= 200度/3-12度24分*5=

180多-27度35分*4
=180°-108°-140'
=69°40'
161度23分/5
=(160°+80'+180")/5
=32°+16'+36"
=32°16'36"
25度24分*5
=125°+120'
=127°
162度/4
=(160°+120')/4
=40°+30'
=40°30'
200度/3-12度24分*5
=(198°+120')/3-(60°+120')
=66°+40'-62°
=4°40'
21度17分*5+176度52分/3
=105°+85'+(174+171'+60")/3
=105°+85'+58+57'+20"
=164°22'20"