Răspuns :
[tex] AC=2AB,\:BC=20\:cm+AC=2AB+20\:cm [/tex]
[tex] P=AB+AC+BC=AB+2AB+2AB+20\:cm=5AB+20\:cm [/tex]
[tex] 270\:cm=5AB+20\:cm\implies AB=50\:cm [/tex]
[tex] AC=100\:cm [/tex]
[tex] BC=120\:cm [/tex]
[tex] AC=2AB,\:BC=20\:cm+AC=2AB+20\:cm [/tex]
[tex] P=AB+AC+BC=AB+2AB+2AB+20\:cm=5AB+20\:cm [/tex]
[tex] 270\:cm=5AB+20\:cm\implies AB=50\:cm [/tex]
[tex] AC=100\:cm [/tex]
[tex] BC=120\:cm [/tex]