Answer:
584.24 inches squared
Step-by-step explanation:
The regular octagon has 8 sides which are all equal. Since the perimeter, the distance all around is 88, divide 88 by 8. This gives 11 inches as the side length.
The formula is [tex]A = 2(1+\sqrt{2}) a^2\\A = 2(1+\sqrt{2}) 11^2\\A = 2(1 + \sqrt{2}) * 121\\A = 584.24[/tex]
