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Transforma in secunde:
a) 12° 15'

b) 20° 30'


Răspuns :

a) 12° 15'=43200"+900"=44100"
12°×3600"/°=43200"
15'
×60"/'=900"

b) 20° 30'
=72000"+1800"=73800"
20°×3600"/°=72000"
30'
×60"/'=1800"