Respuesta :
I hope this helps you
Area =pi.r^2
64.pi=pi.r^2
r=8
Circumference =2pir
Circumference =2.pi.8
Circumference =16.pi
Area =pi.r^2
64.pi=pi.r^2
r=8
Circumference =2pir
Circumference =2.pi.8
Circumference =16.pi