Question

Aflati masurile unghiurilor unui triunghi,stiind ca ele sunt proportionale cu numerele 2,3,5.

Answer 1

{a;b;c} d.p.{2;3;5}= $\frac{a}{2}=\frac{b}{3}=\frac{c}{5}=K$
a+b+c=180


 $\frac{a}{2}$ =K=a=2K=2X18=36 

$\frac{b}{3}$ = K=b=3K=3X18=54

$\frac{c}{5}$= K=c=5K=5X18=90

2K+3K+5K=180
10K=180
K=180:10
K=18 (MERGI SUS SI INLOCUIESTI)