Răspuns:
Explicație pas cu pas:
a)
12°15'31" + 25°21'23" = 37°36'54"
b)
32°27'35" + 15°42'35" = 47°69'71"= 47°70'11"= 48°10'11"
c)
47°31'47" + 52°43'32" = 99°74'79"= 99°75'19"= 100°15'19"
d)
56°35'28" + 42°42'39" = 98°77'67"= 98°78'07"= 99°18'07"
e)
27°47'13" + 3°52'27" = 30°99'40"= 31°39'40"
f)
6°27'35" + 40°32'50" = 46°59'85"= 46°60'25"= 47°00'25"
