Răspuns:
Explicație pas cu pas:
1.transforma in grade si minute:
1° = 60 minute
a) 127' = 2°7'
b) 79' = 1°19'
c) 179' = 2°59'
d) 111' = 1°51'
2. efectueaza:
a) 37°44'+48°29' = 85°73' = 86°13'
b) 67°39'+28°47' = 95°86' = 96°26'
c) 13°17'-8°38' = 12°77' - 8°38' = 4°39'
d) 12°3'-9°45' = 11°63' - 9°45' = 2°18'
e) 22°22' • 2 = 44°44'
f) 22°22' • 3 = 66°66' = 67°6'
g) 48°48':4 = 12°12'
h) 50°24':7 = 49°84' : 7 = 7°12'