Respuesta :

Answer:

approximately 52.752 or 16.8 [tex]\pi[/tex]

Step-by-step explanation:

  1. First find the radius

a) we know the diameter so we can use the formula r=d/2 to solve for the radius

b)16.8/2 =8.4

  2. Then we substitute into the equation

a)2[tex]\pi[/tex]r

b)2[tex]\pi[/tex](8.4)

c)52.752 or 16.8 [tex]\pi[/tex]