Respuesta :
Answer: 6.28
Step-by-step explanation: Using the formula 2×pie×radius
Circumference=2×3.14×1
=6.28
Answer:
Step-by-step explanation:
C = circumference
r = radius
d = diameter
C = 2[tex]\pi[/tex]r or C = [tex]\pi[/tex]d
I will be using the second formula since it is what I prefer but please note that when using the first the only thing being multiplied by two is the radius, not pi.
d = 2r
d = 2 * 1
d = 2
C = 2[tex]\pi[/tex]