° grad (de unghi)
' minut (de unghi)
" secunda (de unghi)
(125 grade si 27 secunde):2= 125grade :2 +27secunde :2=
(124+1) grade:2 +13,5 secunde=124°:2+60':2+13,5"
62°+30' +13,5"=
62°30'13,5"
Obs
diviziunile secundelor reiau sistemul zecimal de aceea 27":2=13,5"
daca am fi avut 125°27':2
(125°27 minute):2=(125°27'):2=...=62°30'+13'30"=62°43'30"
pt ca 27':2=(26+1)' ;2=13'+1':2= 13'+60":2=13'30"
