a) 5,2° = 5 × 60 + 0,2 × 60 = 312 minute
312 × 60 = 18720 secunde
b) 10,4 ° = 10, 4 × 60 = 624 minute
624 × 60 = 37440 secunde
c) 21,2° = 21, 2 × 60 = 1272 minute
1272 × 60 = 76320 secunde
d) 40,5° × 60 = 2430 minute
2430× 60 = 145800 secunde
e) 11,25° × 60 = 675 minute
675 × 60 = 40500 secunde