Răspuns :
a) =(23°+47°)+(15'+23')=70°38`
b) =(85°+43°)+(29`+50`)=128°79`=(128°+1°)+(79-60)=129°19`
c) =(27°+35°)+15`=62°15`
d) =(58°+29°+43°)+(37`+47`+58`)=130°142`=(130°+2°)+(142`-120`)=
132°22`
b) =(85°+43°)+(29`+50`)=128°79`=(128°+1°)+(79-60)=129°19`
c) =(27°+35°)+15`=62°15`
d) =(58°+29°+43°)+(37`+47`+58`)=130°142`=(130°+2°)+(142`-120`)=
132°22`