Question

What is the approximate length of the track in miles

Answer 1

Explanation

Opposite sides are 5 miles each and for each semicircle we have:

$\frac{2\pi *\frac{1}{2}}{2}=\frac{\pi}{2}\text{ miles}$

Then the lenght of the track is:

$5+5+\frac{\pi}{2}+\frac{\pi}{2}=10+\pi$

Approximately 13.1416 miles