Respuesta :

Answer:

The radius is approximately 1249 units.

Step-by-step explanation:

Hello!

The formula for the circumference of a circle of radius r is C = 2πr.  We want to find r when the circumference is 7850 units.  To do this, solve C = 2πr for r first:

Dividing both sides of the above equation by 2π, we get:

7850 units

------------------ = approximately 1249 units.

       2π

The radius is approximately 1249 units.