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S-a se calculeze :
6)35 grade - 34 grade 28´´=
7)90 grade - 44 grade 15´´=
10) 13 grade 41´29´´ x 3 =
12) 25grade 12' :2=
Va rog
P.S ( ce le doua ´´ inseamna secunde si asta ´ inseamna minute si x inseamna inmultire).


Răspuns :

S-a se calculeze :
6)35°- 34°28"=
=34°59'60"-34°28"=59'32"
7)90°- 44°15"=
=89°59'60"-44°15"=45°59'45"
10) 13°41'29" x 3 =
39°123'87"=39°124'27"=41°4'27"
12) 25°12' :2=24°72' :2=12°36'