Răspuns:
a)15°42'23"+120°12'32"=135°54'55"
b)20°40'56"+5°5'48"=25°45'104"=25°46'44"
c)44°44'44"+55°55'55"=99°99'99"=100°40'39"
d)12°49'59"+1°55''+22°54'=35°103'114"=36°44'54"
e)48°48'+48°48"+48°48"+48°48"=192°42'144"=192°44'24"
f)12°+12°57'+12°+57'57"=36°114'57"=37°54'57"
1°=60'
60'=60"
sper că te-am ajutat!