Respuesta :
To find the circumference (c) of a circle we use this expression
c = 2 • r • pi
c = 2 • 9 • pi
c = 18 • pi
c = 56.52
Hope this helps! :)
c = 2 • r • pi
c = 2 • 9 • pi
c = 18 • pi
c = 56.52
Hope this helps! :)