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1) Aflați complementul unghiului de

a) 70°. b)35°. c) 79°. d)18°30' e)35°40'20"


Răspuns :

a)20 grade
b)55 grade
c)11 grade
d)71 grade 30 minute
e)54 grade 20 minute 40 secunde
90grade-70grade=20grade
90grade-35grade=55grade
90grade-18grade30min=89grade60min-18grade30min=71grade30min
1grad=60min
90grade-35grade40min20sec=89grade59min60sec-35grade40min20sec=
=54grade19min40sec
1min=60sec