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lado igual=x
lado desigual=x+2
dos lados iguales=2x
2x+x+2=14
3x+2=14
3x=14-2
3x=12
x=12/3
x=4
x=4 x=4 x+2.....4+2=6
los lados miden 4 cm , 4 cm y 6 cm