Respuesta :

Answer:1157.53

Step-by-step explanation:

Equation: 4×pi×r squared

Radius is half of diameter so 19.2÷2=9.6

4×3.14×9.6squared=1157.53

Answer:

Answer:1157.53

Equation: 4×pi×r squared

4×3.14×9.6squared=1157.53