Răspuns:
c) 1 grad = 60 min, 35% din 60 = 35/100 × 60 = 21 min
d) 13 grad 20 min = 800 min , 15 % din 800 = 15/100 × 800 = 120 min = 2 grade
[tex]\it c)\ \ 35\%\ din\ 1^o=\dfrac{35}{100}\cdot1^o=\dfrac{35}{100}\cdot60'=\dfrac{2100'}{100}=21'\\ \\ \\ d)\ 15\%\ din\ 13^o20'=\dfrac{15}{100}\cdot(13\cdot60'+20')=\dfrac{15}{100}\cdot800'=15\cdot8'=120'=2^o[/tex]
