How many square decimeters of wood board is needed to make a drawer that is 6 decimeters long, 4 decimeters wide and 2 decimeters high

How many square decimeters of wood board is needed to make a drawer that is 6 decimeters long, 4 decimeters wide and 2 decimeters high

S=4*6+2*2*4+2*2*6=64