-12 > a
step-by-step explanation:
-11 > 1 + a
subtract 1 from each side
-11 -1> 1 -1+ a
363 square inches
surface area of a pyramid is b + 1/2ph
b is the area of the base: 11 x 11 = 121
p is the perimeter of the base: 11 + 11 + 11 + 11 = 44
h is the height of the pyramid: 11
121 + 1/2(44)(11)
121 + 242
363