Respuesta :

Answer:6.28 ft^2

Step-by-step explanation:

Diameter=4

Radius=diameter ➗ 2

Radius=4 ➗ 2

Radius=2

Area of semicircle=0.5xπx(radius)x(radius)

Area of semicircle=0.5x3.14x2x2

Area of semicircle=6.28 ft^2