👤

Exercitiul 8...............................


Exercitiul 8 class=

Răspuns :

a)
m(AOB)-m(BOC)=50
m(AOB)+m(BOC)=180
---------------------------------
2*m(AOB)=230 =>m(AOB)=230/2=115 => m(AOB)=180-115=65
b)
OD_|_AC <=> m(AOD)=90

m(EOD)=25
m(AOE)=m(AOB)-m(EOB)=115-50=65

=>m(AOD)=m(AOE)+m(EOD)=25+65=90