86.20 ft²
- Step-by-step explanation:
Hi there !
A = A₁ + A₂
A₁ =semicircle
A₁ = πr²/2
r = d/2 = 6.4ft/2 = 3.2 ft
A₁ = 3.14×(3.2ft)²/2 ≈ 32.15 ft²
A₂ = trapezium
A₂ = (b + B)×h/2
A₂ = (5.1ft + 6.4ft)×9.4ft/2 = 54.05 ft²
A = 32.15 ft² + 54.05 ft² = 86.20 ft²
Good luck !
