Respuesta :

Surface area of Cuboid = 2(lb + bh + hl)
S.A. = 2(1*2 + 2*3 + 3*1)
S.A. = 2(2 + 6 + 3)
S.A. = 2(11)
S.A. = 22 cm²

In short, Your Answer would be 22 cm²

Hope this helps!