Răspunsuri

2014-06-08T16:30:00+03:00
90 grade - 25grade si 30'
Adica = 89grade si 60' - 25grade si 30'
         =64 grade si 30'
2014-06-08T16:33:31+03:00
Complementul unui unghi este 90- masura acelui unghi
90 grade = 89 grade 60 minute
89 grade 60 minute - 25 grade 30 minute= 64 grade 30 minute