Question

m (ABC ) =?
m ( CBF )=?
daca m (CBD ) = 35 grade si 15 minute 
Imi trebuie urgent !!!!! 

Answer 1

 m(ABF)=180 
m(ABF)=m(ABC)+m(CBD)+m(DBF)
180=m(ABC)+35grd15min+90
m(ABC)=90-35grd15min
m(ABC)=89grd60min-35grd15min=54grd45min


m(CBF)=m(FBD)+m(DBC)=90+35grd15min=125grd15min