A closed box made of wood of uniform thickness has length, breadth and height

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

Options:

A . 356 cm²

B . 366 cm²

C . 376 cm²

D . 386 cm²

Answer: Option C

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