Răspuns:
Explicație pas cu pas:
a) 27°32' + 15°47' - 30°24' = 42°79' - 30°24' = 12°55'
b) 145°17'24" + 17°24'15" +4°3'57" = 162°41'39'' + 4°3'57" =
= 166°44'96'' = 166°45'36''
c) 45° - 24°5'17" + 24°55'12" = 69°55'12''-24°5'17'' =
= 69°54'72'' - 24°5'17'' = 45°49'55''
d) ) 180° - 72°41'14" + 19°17'53" = 199°17'53'' - 72°42'14'' =
= 198°77'53'' - 72°42'14'' = 126°35'39''
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1° = 60'
1' = 60''
