Respuesta :
213 meters cubed
2(9x3.5)=2(31.5)=63
2(6x9)=2(54)=108
2(6x3.5)=2(21)=42
63+108+42=213
Surface Area= 213 m³
2(9x3.5)=2(31.5)=63
2(6x9)=2(54)=108
2(6x3.5)=2(21)=42
63+108+42=213
Surface Area= 213 m³