Ex nr 9 va va rog frumos!
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Răspuns
Explicație pas cu pas:
AB=c
BC=a
AC=b
a+b+c=26
2a=3b=4c
2a=3b
a=3b/2
4c=3b
c=3b/4
3b/2+3b/4+b=26
(6b+3b+4b)/4=26
13b=104
b=104/13=8
AC=8
c=3b/4=24/4=6
AB=6
a=3b/2=24/2=12
BC=12
Proba: AB+BC+AC=6+12+8=26