Respuesta :

gmany

Answer:

12.56 m

Step-by-step explanation:

The formula of a circumference of a circle:

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

d - diameter

We have d = 4m.

Substitute:

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

Use 3.14 for π:

[tex]C\approx4(3.14)=12.56\ m[/tex]