Answer :
Side length of the heptagon is 2.5 ft.
Step-by-step explanation:
To find the area of the heptagon, we can use the formula,
A = nsr
n = number of sides
s = side length
r = apothem
Now we can rearrange the formula to get the side as,
s = A/nr
= 90.825 / 7 ×5.19
= 2.5 ft
So the side length of the heptagon is 2.5 ft.