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Ajutooor ,va rog !1
Aflati masurile unghiurilor unui patrulater convex ,daca ele sunt invers proportionale cu numerele: 2,3,6,9


Răspuns :

a+b+c+d=360
{a,b,c,d}ip{2,3,6,9}
2a=3b=+c=9d=k
a=k/2
b=k/3
c=k/6
d=k/9
k/2+k/3+k/6+k/9=360
(9k+6k+3k+2k)/18=360
20k=360x18
k=6480/20
k=324
a=k/2=324/2=162
a=162 grade
b=324/3
b=108
c=324/6
c=54
d=324/9
d=36
162+108+54+36=360