SOLUTION: The lanes on the circular outdoor track are one meter wide. By running in the lane next to the innermost lane, Corey ran extra distance in an eight-lap race. How much?

Algebra ->  Length-and-distance -> SOLUTION: The lanes on the circular outdoor track are one meter wide. By running in the lane next to the innermost lane, Corey ran extra distance in an eight-lap race. How much?      Log On


   

Question 1078649: The lanes on the circular outdoor track are one meter wide. By running in the lane
next to the innermost lane, Corey ran extra distance in an eight-lap race. How much?
Answer by ikleyn(52787) About Me  (Show Source):
You can put this solution on YOUR website!
.
The length of the most innermost lane is in 2pi%28R%2B1%29-2piR = 2pi meters less then the length of the next lane.


So, by running eight-lap race in the lane next to the innermost lane, Corey ran extra 8%2A2pi = 8*2*3.14 meters.