Answer: 14 km
Step-by-step explanation:
To find out the radius of a circle we can use the formula of
A=pi r^2
Our area is 615.75 square kilometers:
615.75=pi r^2
divide by pi on both sides
615.75/pi = r^2
take square root of both sides
r=sqrt615.75/pi
r=13.999975
Assuming it will be rounded to two decimal places the radius would be r=14.00 km
