Răspuns :
AB=AC ( ABC - ISOSCEL )
P=AB+BC+AC=25
BC=AB/2
AB+AB/2+AB=25
5AB/2=25
5AB=50
AB=10 cm
AB=AC=10 cm
BC=5 cm
P=AB+BC+AC=25
BC=AB/2
AB+AB/2+AB=25
5AB/2=25
5AB=50
AB=10 cm
AB=AC=10 cm
BC=5 cm
AB=AC ( ABC -TRIUNGHI ISOSCEL )
P=AB+BC+AC=25
BC=AB:2
AB+AB:2+AB=25
5AB:2=25
5AB=50
AB=10 cm
AB=AC=10 cm
BC=5 cm
P=AB+BC+AC=25
BC=AB:2
AB+AB:2+AB=25
5AB:2=25
5AB=50
AB=10 cm
AB=AC=10 cm
BC=5 cm