Respuesta :

apologiabiology
c=2pir
pi=3.14
r=18

c=(2)(3.14)(18)
c=(6.28)(18)
c=113.04

D is answer
christinann062
c=2πr
r=18
π=3.14
Plug the values in to your formula

c=2(3.14)(18)
Multiply

c=113.04 which is approximately 113

Your answer is D)113 feet