Respuesta :

Answer:

A) Diameter = 9.03 ft

B) Circumference = 28.35 ft

Step-by-step explanation:

64 = πR²

R² = 64/3.14 = 20.38

Radius = 4.51 ft

Diameter = 2(4.51) = 9.03 ft

Circumference = 9.03 x 3.14 = 28.35 ft