Respuesta :

Answer:

18.16 km

Step-by-step explanation:

r = 2km so i took each circle there is 4 circle's and i multiplied each circle by 2 that's how i got the answer -.-

LeDerpyDerp

Answer:

12.56 km

Step-by-step explanation:

It's 12.56 km because the radius is 2 km, so...

2 * 2=4

(because that is just half)

4 * pi = 12.56

Otras preguntas