Respuesta :
Nothing would be shaded. Because you would just see the bottom shape. For example, if you were looking at a top of a box you would just see a square.
1 2 3 4
5 6 7 8
9 10 11 12
13 14 14 15
Shaded Numbers: 13,9,10,11,7,3,4
5 6 7 8
9 10 11 12
13 14 14 15
Shaded Numbers: 13,9,10,11,7,3,4