We know that circumference of a circle is simply equal to:
C = 2 π r
Therefore given the radius, we can directly solve:
C = 2 (3.14) * 3900 miles
C = 24,492 miles
<span>The circumference is 24,492 miles</span>
It will have 2 solutions because, if you take out the (-) it will be a whole diffrent answer!
10 3/5 = 10 6/10 and 11 1/2 = 11 5/10