Answer:
circle
Step-by-step explanation:
if 5 is the radius
(circumference formula is 2*pi*r)
so it'll be 2*pi*5 = 31.41592654...
if 5 is the diameter, then the radius is 2.5 (radius= diameter/2)
so the circumference will be 2*pi*2.5 = 15.70796327
