Respuesta :

Area of the semicircle = 1/2(3.14)(6)² = 56.52 ft²

Area of the rectangle = 40 x 12 = 480 ft²

Area of the triangle = 1/2 x 12 x 5 = 30 ft²

Total Area = 56.52 + 480 + 30 = 566.52 ft²

Answer: 566.52 ft²