Notam x y z masurile unghiurilor
(x , y , z ) d.p (2 3 4 )
stim ca x+y+z = 180
[tex] \frac{x}{2} = \frac{y}{3} = \frac{z}{4} = \frac{x+y+z}{2+3+4}= \frac{180}{9} = 20 [/tex]
[tex] \frac{x}{2} = 20 =\ \textgreater \ x=40 \frac{y}{3} = 20 =\ \textgreater \ y =60 \frac{z}{4}=20 =\ \textgreater \ x=80 [/tex]
