Răspuns:
Explicație pas cu pas:
a) 45°18'- 15° 24' = 44°78' - 15°24' = 29°54'
b) 49°21' 13'' - 12°42'37'' = 48°81'13'' - 12°42'37'' =
= 48°80'73''-12°42'37''=36°38'36''
c) 45°21'13'' - 12°42'37'' = 44°80'73'' - 12°42'37'' = 32°38'36''
d) 73°38'46 : 6 = 12°6'37'' 667 miimi
12·6 = 72 ; 38+1 = 39 ; 39:6 = 6 ; 3·60+46 = 226 ; 226:6 = 37,(6)
e) 34°14'51''+48'23'' = 34°62'74'' = 35°2'74'' = 35°3'14''