Answer: 67.7ft²
Step-by-step explanation:
Note that a heptagon has 7 sides.
The area of a heptagon is given as:
= 1/2 × nsr
where,
n = number of sides = 7
s = length of side = 4.3ft
r = apothem= 4.5ft
Area of the heptagon = ½nsr
= ½ × 7 × 4.3 × 4.5
= 135.45/2
= 67.7ft²
Therefore, the area of the heptagon is 67.7ft²