Answer:
12.56 km
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
18.16 km
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 -.-
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