Find the surface area of a cuboid whose `(i)L e ng th\ =\ 10 c m ,\ b r e a dt h\ =\ 12 c m ,\ h e igh t\ =\ 14 c m` `(ii)L eng th\ =\ 6\ d m ,\ b r e a dt h\ =\ 8d m ,\ h e igh t\ =\ 10 d m` `(iii)L eng t h\ =\ 2m ,\ b r e a dt h\ =\ 4m ,\ h e igh t\ =\ 5m` `(iv)Le ng t h\ =\ 3. 2 m ,\ b r e a dt h\ =\ 30 d m ,\ h e igh t\ =\ 250\ c mdot`