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10x=130
x=130/10
x=13
entonces; largo=4(13)=52
L.2+L.2
X=ancho
4x=largo
2.(x)+2.(4x)=130cm^2
2x+8x=130cm^2
10x=130cm^2
X=130cm^2/10
X=13
El ancho es de 13cm y el ancho es el cuadruple del ancho que es 52cm.
Verificacion
13.2+52.2=130cm^2
26+104=130cm^2
130=130cm^2
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