In this question , the given circumference of circle is
[tex] 2500 \pi [/tex]
And the formula of circumference is
[tex] C = 2 \pi r [/tex]
Where r is the radius .
Substituting the value of circumference, C, we will get
[tex] 2500 \pi = 2 \pi r [/tex]
Dividing both sides by 2pi,
[tex] r = \frac{2500 \pi}{2 \pi} = 1250 [/tex]
Therefore the radius is 1250 .
