What you did is volume! Surface area: Take the area of one face on a cube. 4*4=16 Now multiply it by 6 because all 6 faces on a cube are equal in area. You get 96 cm squared
that was when I was in 1st grade. I was quite confused and didn't know what to do. We rehearsed first. I made a lot of mistakes but everything was fine until I got on stage. I think when I finished performing, it was my proudest time