There are 5 sides on a pentagon. penta=5 sides
it's x ≤ 3 :))) I found it out after realizing what you were asking
First, convert those inches to feet.
7in =ish 0.5833333
(you find this by dividing 7/12 on a calculator)
Now you just square 9.583333333
9.583333333^2
9.583333333 * 9.583333333
91.84027777ish
Rounded to the nearest foot, means the answer is 92ft.