Respuesta :

Answer:

5.5 inches

Step-by-step explanation:

Answer:

28.26

Step-by-step explanation:

C=2[tex]\pi r\\[/tex]                            Radius is twice the diameter so put 2[tex]\pi r\\[/tex]

C=2*3.14*4.5

C=6.28*4.5

C=28.26