Question

Masurile unghiurilor unui triunghi sunt invers proportionale cu 1; 0,(3) ; 0,5 .Aflati aceste masuri

Answer 1

0,(3)=3/9=1/3
0,5=5/10=1/2
a+b+c=180
{a,b,c,}ip{1,1/3,1/2}
a=b/3=c/2=k
a=k
b/3=k⇒b=3k
c/2=k⇒c=2k
k+3k+2k=180
6k=180
k=180/6
k=30
a=30 grade
b=3k=3x30=90 grade
c=2k=2x30=60 grade
30+60+90=180