Use the net to find the surface area of the prism.
ft^2

Consider that long row as 1 big rectangle with base 6+11+6+11=34 and height of 8
area=34*8=272 ft^2

the 2 rectangles on side

the sbase is 11
the height is 6 since it has to match with the other 2 side things
2*6*11=132

add to find total
132+272=404 ft^2