a) complementul lui x este 90-x
cum ai x=36 grade 42 min si 52 sec
=> 90 grade -(36 grade 42 min si 52 sec) =
=(89 grade +59 minute +60 secunde) -(36 grade 42 min si 52 sec)=
=53 grade 17 minute si 8 secunde
b)
180 grade- (45 grade 32 minute si 16 sec) =
=(179 grade +59 min +60 sec) -(45 grade 32 minute si 16 sec)=
=134 grade 27 min si 44 sec
