Răspuns:
a)28°23'45''-17°38'40''=
27°83'45''-17°38'40''=10°45'5''
b)48°18'23''-40°28'37''=
47°67'83''-40°28'37''=7°39'46''
c)90°-23°15'23''=
89°59'60''-23°15'23''=66°44'37''
d)180°-28°43'52''=
179°59'60''-28°43'52''=151°16'8''
e)100°31'42''-80°32'43''=
99°90'102''-80°32'43''=19°58'59''
1°=60'
1'=60''
sper că te-am ajutat!