Rectángulo
P=2b+2h
[tex]128=2(5x)+2(3x)\\128=10x+6x\\128=16x\\\frac{128}{16} =x\\8=x[/tex]
Largo=5(8)=40
Ancho=3(8)=24
128=2(40)+2(24)
128=80+48
128=128
Respuesta:
Largo 40 cm
Ancho 24 cm
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Verified answer
Rectángulo
P=2b+2h
[tex]128=2(5x)+2(3x)\\128=10x+6x\\128=16x\\\frac{128}{16} =x\\8=x[/tex]
Largo=5(8)=40
Ancho=3(8)=24
128=2(40)+2(24)
128=80+48
128=128
Respuesta:
Largo 40 cm
Ancho 24 cm