Respuesta :

Answer:

357 mi²

Step-by-step explanation:

A = LW + 0.5πr²

A = (10 × 20 + 0.5 × 3.14159 × 10²) mi²

A = (10 × 20 + 0.5 × 3.14159 × 10²) mi²

A = 357 mi²