Răspuns:
Explicație pas cu pas:
a)
25°40' -
15°35'
----------
10°05'
d)
81°43' -
43°18'
------------
38°25'
b)
30°27' -
19°21'
-----------
11°06'
e)
64°51' -
27°35'
-------------
37°16'
c)
70°52'-
29°12'
-----------
41°40'
f)
75°40' -
21°15'
----------
54°25'
succes