Respuesta :

Answer:

12.57 km

Step-by-step explanation:

C=2[tex]\pi[/tex]r

2[tex]\pi[/tex]2=C

4[tex]\pi[/tex]=C

C=12.57

Answer:

12.57km.

Step-by-step explanation:

radius (r) = 2km

Circumference of a circle is given as:

C = 2πr

C = 2π × 2

C = 4π (12.57)km.