Respuesta :

Answer:

15.7

Step-by-step explanation:

c=d×3.14 which equals 15.7

Soren1

Answer:

5π or 15.70796327 (I don't know what to round to or if the answer is supposed to be in terms of pi so it could be either).

Step-by-step explanation:

[tex]2\pi(2.5) = 5\pi[/tex]

[tex]5\pi = 15.70796327[/tex]