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Verified Answer :

Circumference = 2pir
r = radius
25000/2 = (2pir)/2
12500/pi = (pir)/pi
3978.87 = r
the answer is 3981
 I know that the answers are not exactly the same, but with something like this it is best to go with the closet answer.

Answer:

3981 miles

Step-by-step explanation:

Circumference refers to the perimeter of circle . Let r be the radius of circle then it's circumference is given by \(2\pi r\) where \(\pi =3.14\) .

Here, circumference = 25,000 miles .

We need to find distance between the point on earth's surface and the centre  i.e we need to find radius here .

Circumference = \(2\pi r\)

\(25000=2(3.14) r\\25000=6.28r\)

On dividing both sides by 6.28 , we get

\(\frac{25000}{6.28}=\frac{6.28r}{6.28}\\\\\frac{25000}{6.28}=r\\\\3980.89=r\)

On rounding off the value of radius r , we get

\(3981=r\)

So, distance between point on earth's surface and centre is 3981 miles .

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