question_answer

A closed box made of steel of uniform thickness has length, breadth and height 12 dm, 10 dm and 8 dm respectively. If the thickness of the steel sheet is 1 dm, then the inner surface area is

A) \[\text{456 d}{{\text{m}}^{\text{2}}}\] 

B)  \[\text{376 d}{{\text{m}}^{\text{2}}}\]  

C) \[\text{264 d}{{\text{m}}^{\text{2}}}\]           

D)         \[\text{696 d}{{\text{m}}^{\text{2}}}\]