Respuesta :
Circumference = 2pi * radius
Diameter = 2 * radius
Circumference = pi * diameter
56.52 = pi * diameter
56.52/pi = (pi * diameter)/pi
18 = diameter
Diameter = 2 * radius
Circumference = pi * diameter
56.52 = pi * diameter
56.52/pi = (pi * diameter)/pi
18 = diameter