[tex]cuboid : \\ \\ l=12 \ ft , \ \ w = 5 \ ft , \ \ h= 7 \ ft \\ \\ A = 2wl + 2lh + 2hw \\ \\A=2\cdot 5\cdot 12 + 2\cdot 12\cdot 7 + 2\cdot 7\cdot 5 = 120+ 168 +70 = 358 \ ft^2 \\ \\ cube: \\ \\ four \ side \ walls : \\ \\ s= 5 \ ft \\ \\ 4 \cdot s^2 = 4 \cdot 5^ 2 = 4*25 = 100 \ ft^2 \\ \\ surface \ area \ of \ the \ figure : \\ \\ 358 +100 = 458 \ ft^2 \\ \\ Answer : \ B. \ 458 ft^ 22 [/tex]
