efectueaza calculele :
AJUTOR VA ROG URGENT DAU COROANA !!
![Efectueaza Calculele AJUTOR VA ROG URGENT DAU COROANA class=](https://ro-static.z-dn.net/files/de4/010e7a0de86914429d0d5461d51bf7ed.png)
a) 64°35'
b) 40°40' + 2°10'×2=40°40'+4°20'=45°
c) 91°+90°=181°
d) 105°:21+85°= 5°+85=90°
e) 128°16'
f) 180°-40'=179° 20'